EL7Z UP (엘즈업) — pronounced “else-up” — is one of K-pop’s most unique project girl groups ever created. Born from the competitive world of Mnet’s Queendom Puzzle survival show, this seven-member supergroup brought together some of the most talented and experienced idols in the Korean pop music scene. Every single member had already debuted in their own group before coming together to form something even bigger.
What makes EL7Z UP so special in the K-pop girl group landscape? Think of it like a dream team. Imagine taking standout stars from Lovelyz, CLC, WJSN, Rocket Punch, WOOAH, H1-KEY, and PURPLE KISS — and putting them all on one stage together. That’s exactly what happened.
The group’s name itself tells their whole story. EL7Z UP is an anagram of the word “PUZZLE” spelled in reverse, with the number “7” sitting right in the middle to represent all seven members. It perfectly captures the idea of fans and viewers “puzzling out” the best possible lineup from dozens of competitors. Their name literally means rising higher — and that spirit drives everything they do.
If you’re a fan of K-pop supergroups, Queendom Puzzle members, or you simply want to learn about these incredible Korean female idols, you’ve come to the right place. In this guide, we’ll walk you through everything — from EL7Z UP’s band history to detailed member profiles, fun facts, achievements, discography, music videos, and their live performance history.
EL7Z UP isn’t your typical K-pop group — they’re a project supergroup, which means they came together for a specific purpose and represent multiple entertainment agencies at once. Here’s a quick snapshot of everything you need to know about the group:
- Group Name: EL7Z UP (엘즈업) / Also written as EL7Z U+P
- Pronunciation: “Else-Up”
- Name Meaning: Anagram of “PUZZLE” reversed; the “7” represents the seven members
- Group Type: Project Girl Group / K-Pop Supergroup
- Origin: Seoul, South Korea
- Genre: K-Pop
- Number of Members: 7
- Formed Through: Mnet’s Queendom Puzzle (2023)
- Show Air Dates: June 13 – August 15, 2023
- Final Lineup Announced: August 15, 2023 (finale episode)
- Official Debut Date: September 14, 2023
- Debut Album: 7+UP (Mini Album)
- Management: Apple Monster & DG Entertainment
- Official Fandom Name: EL7Z U (엘즈유)
- Official Instagram: @_el7zupofficial
- Official Twitter/X: @_EL7ZUPofficial
- Official TikTok: @el7zup_official_
- YouTube: EL7Z UP
- Parent Groups: Lovelyz, CLC, WJSN, Rocket Punch, WOOAH, H1-KEY, PURPLE KISS
- Current Status: Inactive (as of 2024–2026); assumed to have silently disbanded
The EL7Z UP Member Profiles
Ready to meet the seven women who make up EL7Z UP? Each of them brings something completely different to the table — different backgrounds, different strengths, and different personalities. That’s exactly what made this Queendom Puzzle lineup so exciting for fans all over the world.
Quick Overview: EL7Z UP Member Table
| Stage Name | Real Name | Birthday | Age (2026) | Nationality | Original Group | Position | Queendom Puzzle Rank |
|---|---|---|---|---|---|---|---|
| Yeoreum | Lee Yeo Reum (이여름) | Jan 10, 1999 | 27 | Korean | WJSN | Leader, Main Dancer, Vocalist | 5th |
| Hwiseo | Jo Hwi Hyeon (조휘현) | Jul 31, 2002 | 23 | Korean | H1-KEY | Main Vocalist | 1st |
| Kei | Kim Ji Yeon (김지연) | Mar 20, 1995 | 31 | Korean | Lovelyz | Main Vocalist | 4th |
| Nana | Kwon Na Yeon (권나연) | Mar 9, 2001 | 25 | Korean | WOOAH | Main Dancer, Vocalist | 2nd |
| Yeeun | Jang Ye Eun (장예은) | Aug 10, 1998 | 27 | Korean | CLC | Main Rapper, Vocalist | 7th |
| Yeonhee | Kim Yeon Hee (김연희) | Dec 6, 2000 | 25 | Korean | Rocket Punch | Vocalist | 6th |
| Yuki | Sato Yuki (사토 유키) | Apr 6, 2003 | 23 | Japanese | PURPLE KISS | Main Rapper, Lead Dancer, Vocalist | 3rd |
Detailed Member Profiles
🌸 Yeoreum (여름) — The Leader
EL7Z UP
- Stage Name: Yeoreum (여름) — means “Summer” in Korean
- Real Name: Lee Yeo Reum (이여름)
- Birthday: January 10, 1999
- Age in 2026: 27 years old
- Zodiac Sign: Capricorn
- Blood Type: A
- Height: 162 cm (5’4″)
- MBTI Type: ISFJ
- Nationality: South Korean
- Birthplace: Hanam, Gyeonggi, South Korea
- Original Group: WJSN (Cosmic Girls), under Starship Entertainment (debuted Feb 25, 2016)
- Sub-Unit: WJSN CHOCOME
- Project Group: Y TEEN (with WJSN’s Eunseo)
- EL7Z UP Position: Leader, Main Dancer, Vocalist
- Queendom Puzzle Rank: 5th place (with 376,004 votes)
- Instagram: yeolum_e
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She was chosen as the group leader of EL7Z UP right from their debut on September 14, 2023.
Her stage name literally means “Summer” in Korean — fans say she lights up every stage just like the season.
She’s a member of WJSN’s popular sub-unit WJSN CHOCOME, known for their cute and quirky concepts.
Yeoreum’s group WJSN won 1st place on Queendom 2 before she went on to compete in Queendom Puzzle.
She’s also known as a sub-rapper within WJSN, making her one of the more versatile performers in EL7Z UP.
Even though she ranked 5th on Queendom Puzzle, fans praised her dance skills as some of the best on the show.
Her MBTI is ISFJ, often described as “The Defender” — thoughtful, caring, and incredibly loyal to her team.
Yeoreum was part of the Starship project group Y TEEN, showing her experience in project-type groups before EL7Z UP.
She trained at Starship Entertainment and debuted at just 17 years old, making her one of the more experienced members.
Her blood type is A and she’s a true Capricorn — known for being hardworking and quietly determined.
🎤 Hwiseo (휘서) — The #1 Pick
Hwiseo
- Stage Name: Hwiseo (휘서)
- Real Name: Jo Hwi Hyeon (조휘현)
- Birthday: July 31, 2002
- Age in 2026: 23 years old
- Zodiac Sign: Leo
- Nationality: South Korean
- Birthplace: Seoul, South Korea
- Original Group: H1-KEY, under GLG Entertainment
- Debut with H1-KEY: June 2022
- EL7Z UP Position: Main Vocalist
- Queendom Puzzle Rank: 1st place (highest ranking in the group)
- Signature Feature: Her eyes — she considers them her most attractive feature
- Favorite Colors: Red, black, and hot pink
- Food Preference: Loves spicy food
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She ranked 1st in the Queendom Puzzle finale, making her the most voted member going into EL7Z UP’s debut.
Hwiseo is the main vocalist of EL7Z UP — her powerful, emotive singing voice consistently wowed audiences throughout the show.
She’s the tallest member in EL7Z UP, standing above the rest of her group.
Her group H1-KEY debuted in January 2022, but Hwiseo personally joined them later in June 2022 — she’s one of the newest idols in the group by debut date.
She absolutely loves spicy food and doesn’t hold back when it comes to bold flavors.
Hwiseo’s favorite colors are red, black, and hot pink — bold choices that match her confident stage presence.
She views her eyes as her most attractive feature and leans into expressive looks during performances.
Along with Kei, Hwiseo is considered one of the main vocal pillars of EL7Z UP.
She’s a Leo — and fans say her charisma on stage perfectly fits the lion-hearted spirit of her zodiac sign.
Even before EL7Z UP, Hwiseo gained a fanbase through H1-KEY’s energetic and girl-crush concept, which complemented EL7Z UP’s style perfectly.
🌼 Kei (케이) — The Senior Queen
Kei
- Stage Name: Kei (케이)
- Real Name: Kim Ji Yeon (김지연)
- Birthday: March 20, 1995
- Age in 2026: 31 years old
- Zodiac Sign: Pisces
- Blood Type: O
- Height: 162 cm (5’3″)
- MBTI Type: ESFJ
- Nationality: South Korean
- Birthplace: Incheon, South Korea
- Original Group: Lovelyz, under Woolim Entertainment (debuted November 12, 2014)
- Solo Debut: October 8, 2019 — Over and Over (1st mini album)
- EL7Z UP Position: Main Vocalist
- Queendom Puzzle Rank: 4th place
- Instagram: _flower_kei
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Kei is the oldest member of EL7Z UP, born in 1995 — and she wears that seniority with grace and warmth.
She originally debuted with Lovelyz in November 2014, making her one of the most experienced idols in the group with over a decade in the industry.
Kei launched her solo career in 2019 with the mini album Over and Over — showcasing her soft, lyrical vocal style.
Even though she’s the eldest, her baby face and youthful appearance left the 4th generation members totally shocked by her actual age.
Her MBTI is ESFJ — “The Consul” — someone who’s warm, sociable, and always focused on making others feel included.
Alongside Yeeun, Kei has the most years of industry experience among all EL7Z UP members.
She was the first Mnet survival show participant among all Lovelyz members, making her Queendom Puzzle appearance a historic moment for Lovelyz fans.
Kei has an Instagram dedicated to her solo journey as @_flower_kei — her handle even says it all; she’s the flower of the group.
Her blood type is O and she’s a Pisces — artistic, empathetic, and deeply intuitive.
Fans often describe her as the “unnie” (older sister) energy of EL7Z UP — caring, steady, and someone every younger member can lean on.
💃 Nana (나나) — The Dance Machine
Nana
- Stage Name: Nana (나나)
- Real Name: Kwon Na Yeon (권나연)
- Birthday: March 9, 2001
- Age in 2026: 25 years old
- Zodiac Sign: Pisces
- Blood Type: B
- Height: 162 cm (5’3″)
- MBTI Type: ENFJ
- Nationality: South Korean
- Birthplace: Sanggye-dong, Nowon, Seoul, South Korea
- Original Group: WOOAH, under NV Entertainment (debuted May 15, 2020)
- Role in WOOAH: Leader
- EL7Z UP Position: Main Dancer, Vocalist
- Queendom Puzzle Rank: 2nd place
- Training Period: 2.5 years
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Nana ranked 2nd overall in the Queendom Puzzle finale — her popularity with global fans was undeniable from the very start.
She serves as the Leader of WOOAH in her original group, so she’s well-practiced in guiding and supporting a team.
Nana won the most benefits (3 times total) throughout all of Queendom Puzzle — no other member matched her consistency.
Her MBTI is ENFJ — “The Protagonist” — a natural-born leader who loves inspiring and lifting others up.
She’s recognized as one of the top visual picks in EL7Z UP, having been selected as a visual standout both during and outside the show.
Nana is a Pisces, born on March 9, 2001 — making her one of the middle-born members by age.
She trained for 2.5 years before debuting with WOOAH in 2020 — building serious technical skills before the world even got to meet her.
Despite her powerful dance skills, Nana is also a vocalist — she takes on singing lines as well as lead dance moments.
Fans adore her stage presence — many say she naturally draws the eye in any group performance.
Her blood type is B — creative, passionate, and always ready to make a bold impression.
🎤 Yeeun (예은) — The Rap Queen
Yeeun
- Stage Name: Yeeun (예은)
- Real Name: Jang Ye Eun (장예은)
- Birthday: August 10, 1998
- Age in 2026: 27 years old
- Zodiac Sign: Leo
- Nationality: South Korean
- Original Group: CLC (Cube Entertainment) — debuted March 2015 at age 16
- Left Cube Entertainment: March 18, 2022
- New Agency: Superbell Company (signed August 11, 2022)
- Solo Debut: April 13, 2023 — The Beginning (single album)
- EL7Z UP Position: Main Rapper, Vocalist
- Queendom Puzzle Rank: 7th place (350,517 votes)
- Notable Quirk: Left-handed
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Yeeun is left-handed — a fun little detail that her fans always love to point out.
She debuted with CLC at just 16 years old in March 2015, making her the member who debuted at the youngest age in EL7Z UP.
Yeeun was the schoolmate of BTS’s Jungkook — yes, that Jungkook!
She loves playing Overwatch and has said gaming is one of her favorite ways to unwind after a tough schedule.
Alongside Kei, Yeeun has the most total years in the industry — both debuted in the 3rd generation era of K-pop.
Yeeun made her solo comeback in April 2023 with The Beginning — just months before EL7Z UP debuted.
She absolutely loves building Legos and solving puzzles — fitting, given she ended up in a group literally named PUZZLE!
Yeeun has appeared in several major magazines including Vogue Girl, Allure Korea, Singles, Indeed, and MAPS.
Some of her favorite hobbies include cooking, collecting socks, fruit peeling, and learning to speak Chinese.
She holds a valid driver’s license and also made an acting appearance in the 2022 webmovie series Tastes of Horror.
🌟 Yeonhee (연희) — The Lyrical Voice
Yeonhee
- Stage Name: Yeonhee (연희)
- Real Name: Kim Yeon Hee (김연희)
- Birthday: December 6, 2000
- Age in 2026: 25 years old
- Zodiac Sign: Sagittarius
- Nationality: South Korean
- Birthplace: Gwangju, South Korea
- Original Group: Rocket Punch, under Woolim Entertainment (debuted August 7, 2019)
- Role in Rocket Punch: Leader
- Training Period: 2 years and 7 months
- Education: Graduated from School of Performing Arts Seoul (SOPA)
- EL7Z UP Position: Vocalist
- Queendom Puzzle Rank: 6th place (358,059 votes)
- Role Model: BoA
- Languages: Korean, Japanese
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Yeonhee auditioned to Woolim Entertainment performing BoA’s Atlantis Princess — BoA remains her biggest role model to this day.
She leads Rocket Punch as the group’s Leader — meaning EL7Z UP actually has two group leaders in its lineup (Yeonhee and Nana).
Yeonhee graduated from SOPA (School of Performing Arts Seoul), one of South Korea’s most prestigious performing arts high schools for idols.
She trained for 2 years and 7 months before debuting — a testament to her dedication to honing her craft.
She’s the only member of EL7Z UP who never received a special benefit throughout the entire run of Queendom Puzzle.
Yeonhee can speak Japanese fluently, which helped EL7Z UP connect better with their large Japanese fanbase.
Her personal goal for EL7Z UP was to win an award at MAMA — a dream the whole team shared.
Her favorite track from their debut album 7+UP is “Cloud 9” — a fan-favorite softer track from the EP.
She was born in Gwangju, one of South Korea’s major cities known for its rich cultural heritage.
Yeonhee is a Sagittarius — adventurous, honest, and always aiming for the highest stars, just like her idol BoA.
🎶 Yuki (유키) — The Multinational Star
Yuki
- Stage Name: Yuki (유키)
- Real Name: Sato Yuki (사토 유키)
- Birthday: April 6, 2003
- Age in 2026: 23 years old
- Zodiac Sign: Aries
- Nationality: Japanese
- Birthplace: Japan
- Original Group: PURPLE KISS, under RBW Entertainment
- EL7Z UP Position: Main Rapper, Lead Dancer, Vocalist
- Queendom Puzzle Rank: 3rd place (394,649 votes)
- Distinction: Only non-Korean member of EL7Z UP
- Distinction: Only member who teamed up with ALL other members during Queendom Puzzle stages
- Maknae: Yes — youngest member of EL7Z UP
- Favorite Song from 7+UP: “Undercover”
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Yuki is the only Japanese member in EL7Z UP — she’s the international bridge between the group and their massive Japanese fanbase.
She’s the youngest member (maknae) of EL7Z UP, born in 2003 — but she was already a fully-fledged idol before joining the group.
She ranked an impressive 3rd place in the finale with 394,649 global votes — her multilingual ability made her a global fan favorite.
Yuki is the only member who teamed up with every single other member during different stages of Queendom Puzzle — a true connector.
In PURPLE KISS, she holds the position of Main Rapper and Lead Dancer — making her one of the most well-rounded performers in EL7Z UP.
Her favorite song from the 7+UP debut album is “Undercover” — a darker, edgier track that suits her rap-forward style.
Yuki belongs to RBW Entertainment, which is also known as the home of MAMAMOO — she’s in great company.
She was the very first member to be named in the final EL7Z UP debut lineup during the Queendom Puzzle finale episode.
Being an Aries, Yuki is known for her fire — bold, enthusiastic, and never afraid to stand out on a stage.
Alongside Yeeun, Yuki serves as one of the Main Rappers of EL7Z UP — together they gave the group a powerful, dynamic rap duo.
Achievements
EL7Z UP packed a lot into their short but memorable time as an active group. Here’s what they accomplished:
- Debut Mini Album Sales: 7+UP entered the Circle Album Chart at No. 11 in its debut week (September 17–23, 2023), selling 18,002 copies in the first week alone.
- Total Album Sales: Cumulative sales exceeded 40,000 units by the end of 2023 — a solid showing for a first-time project group debut in a packed market.
- MAMA 2023 Performance: The group performed at the prestigious 2023 MAMA Awards held at Tokyo Dome — one of the most iconic stages in all of K-pop. They delivered a special version of “CHEEKY” fused with “SNAP” from their Queendom Puzzle era.
- KCON Saudi Arabia 2023: EL7Z UP appeared at KCON Saudi Arabia 2023, performing at the Mohammed Abdu Arena in Riyadh — a massive global festival stage.
- M Countdown in France: The group performed at the special edition of M Countdown in France on October 15, 2023, marking an early global footprint.
- Japan Fan Concert “Piece Up”: The group held their very own Japan 1st Fan Concert, titled Piece Up, across multiple Japanese cities — building a dedicated Japanese fanbase right out of the gate.
- Queendom Puzzle Victory: All seven members won the global vote to form one of the most-watched project group debuts in recent K-pop history.
- Multiple Music Show Promotions: The group performed on M Countdown, Music Core, Inkigayo, The Show, and Show Champion throughout September 2023.
- Fandom Launch: The group established their official fandom “EL7Z U” (엘즈유) on September 9, 2023, building community before even officially debuting.
Discography and Music Videos
EL7Z UP’s discography may be small in number, but every single release carries real weight. Here’s a full look at what they put out:
Mini Albums
| Album | Release Date | Type | Total Length | Label |
|---|---|---|---|---|
| 7+UP | September 14, 2023 | 1st Mini Album (EP) | 16:15 | Apple Monster / DG Entertainment |
Tracklist: 7+UP (September 14, 2023)
| # | Track Title | Notes |
|---|---|---|
| 1 | CHEEKY | Title Track / Lead Single — Music Video Released |
| 2 | Cloud 9 | Fan Favorite (Yeonhee’s favorite track) |
| 3 | Undercover | Edgier track (Yuki’s favorite) |
| 4 | Die for You | Yeeun’s favorite from the album |
| 5 | Up 7 | Group anthem |
| 6 | Piece | Outro track |
Note: 7+UP runs for 16 minutes and 15 seconds total, giving fans a full and satisfying debut listening experience.
Music Video
The lead single and title track “CHEEKY” received an official music video upon release on September 14, 2023. The video showcases the group’s confident, bold concept and highlights each member’s distinct personality and visual style. “CHEEKY” was the track the group promoted on major Korean music shows throughout September 2023.
Additionally, during their Queendom Puzzle run, the members performed the popular stage song “SNAP” — which later appeared as part of their special 2023 MAMA performance fused with CHEEKY.
Live Performances and World Tours
EL7Z UP jumped onto international stages almost immediately after their debut. Here’s a full look at their tour history and notable live performances:
Concert Tours and Fan Events
| Tour / Event Name | Date(s) | Location | Venue | Notes |
|---|---|---|---|---|
| EL7Z UP Japan 1st Fan Concert: Piece Up | Oct 22, 2023 | Saitama, Japan | Omiya Sonic City Hall | First-ever fan concert |
| EL7Z UP Japan 1st Fan Concert: Piece Up | Oct 24, 2023 | Osaka, Japan | TBC | Additional Japanese date |
| EL7Z UP Japan 1st Fan Concert: Piece Up (Additional) | Nov 2023 | Tokyo, Japan | TBC | Added Tokyo dates after demand |
Notable Stage Performances
| Performance | Date | Location | Notes |
|---|---|---|---|
| Debut Stage | Sep 14, 2023 | South Korea | Official debut — CHEEKY |
| M Countdown | Sep 2023 | South Korea | Weekly music show performance |
| Music Core | Sep 2023 | South Korea | Weekly music show performance |
| Inkigayo | Sep 2023 | South Korea | Weekly music show performance |
| The Show | Sep 2023 | South Korea | Weekly music show performance |
| Show Champion | Sep 2023 | South Korea | Weekly music show performance |
| KCON Saudi Arabia 2023 | Oct 6–7, 2023 | Riyadh, Saudi Arabia | Mohammed Abdu Arena — massive KCON stage |
| M Countdown in France | Oct 15, 2023 | France | International music show special |
| 2023 MAMA Awards | Nov 2023 | Tokyo Dome, Japan | Performed CHEEKY + SNAP mashup |
2026 Tour Status
| Status | Detail |
|---|---|
| Planned Comeback (May 2024) | ❌ Cancelled — officially announced April 23, 2024 due to internal circumstances |
| KCON Japan 2024 | ❌ Cancelled — announced alongside comeback cancellation |
| 2024 Comeback Album | ❌ Never released; indefinitely postponed |
| Active Group Status (2026) | ⚠️ Group is currently inactive — no confirmed activities or tours for 2026 |
| Individual Member Activities | ✅ Members continue to be active in their original groups and solo careers |
Important Note for Fans: As of 2026, EL7Z UP has not officially announced a disbandment, but the group has been silent since late 2023. No new music, no tours, and no group content have been released. The planned May 2024 comeback was cancelled and was never rescheduled. Fans still hold out hope, and each member continues to thrive within their respective groups. The puzzle may not be fully solved yet!
Final Thoughts
EL7Z UP gave K-pop fans something truly special — a project supergroup built on talent, experience, and years of hard work. From the gripping competition of Queendom Puzzle to their electrifying debut stage and their unforgettable performance at Tokyo Dome’s MAMA Awards, these seven women proved that when the best come together, something magical happens.
Whether you fell in love with Kei’s sweet vocals, Yuki’s fierce rap, Nana’s jaw-dropping dance moves, or Hwiseo’s show-stopping voice, each member brought something unique to the mix. And that, at the end of the day, is exactly what the name EL7Z UP was always meant to represent — seven perfectly placed pieces of a puzzle, rising higher together.
If you’re new to K-pop or a longtime fan searching for your next obsession, give EL7Z UP’s debut album 7+UP a listen. Start with “CHEEKY”, stay for “Cloud 9”, and let the music do the talking.