Solar
솔라 · Kim Yong-sun (김용선)
Kim Yong-sun — Leader · Main Vocalist
February 21, 1991 South Korean 163 cm 45 kg Type B ISTJ Pisces
Solar is the leader and main vocalist of Mamamoo, one of K-pop's most acclaimed vocal powerhouse girl groups. Born Kim Yong-sun on February 21, 1991, in Seoul, she debuted with Mamamoo in June 2014 and quickly became known for her stable high notes, wide vocal range, and confident live performances. Beyond the group, Solar has built a thriving solo career, releasing the long-running Solar Emotion cover project alongside official releases such as "Spit It Out," "Honey," and Colours. In 2022 she teamed up with fellow member Moonbyul to debut Mamamoo's first official subunit, Mamamoo+. A familiar face on Korean variety television, Solar has hosted, judged, and starred on shows ranging from We Got Married to Late Night Ghost Talk, while also stepping into musical theatre with acclaimed lead roles in Mata Hari, Notre-Dame de Paris, and Sugar, and making her film debut in the horror movie The Cursed. More recently, she has expanded into the Chinese-language market with Mandarin singles and sold-out concerts across Taiwan and mainland China. Known for her leadership, work ethic, and warm humor, Solar remains one of the most respected and versatile idols of her generation, balancing group promotions, a growing solo discography, entertainment hosting, and stage acting all at once. Fans and critics alike continue to praise her for the consistency of her live vocals and her ability to reinvent herself across so many creative fields.
Story
Biography
Solar, born Kim Yong-sun, is the leader and main vocalist of the South Korean girl group Mamamoo. Since debuting in June 2014 under RBW, she has become one of K-pop’s most respected live vocalists, known for her powerful high notes, wide range, and steady stage presence. Beyond her work with Mamamoo, Solar has built an equally busy career as a solo artist, entertainer, and musical actress.
Early Life and Debut
Solar was born on February 21, 1991, in Gangseo District, Seoul, where she grew up with her parents and an older sister. She studied tourism at Hanyang Women’s University before training and debuting as Mamamoo’s leader and main vocalist alongside Moonbyul, Wheein, and Hwasa in the mini album Hello.
Solo Career and Solar Emotion
Long before her official solo debut, Solar built a devoted following through her Solar Emotion project, a long-running series of cover releases reinterpreting Korean ballads. She made her official solo debut in April 2020 with the single “Spit It Out,” followed by the EPs 容: Face (2022) and Colours (2024). In 2022, she and Moonbyul formed Mamamoo’s first official subunit, Mamamoo+.
Variety, Musicals, and Acting
Solar is a familiar face on Korean variety television, having appeared on shows such as We Got Married, Boss in the Mirror, and Late Night Ghost Talk, and she has judged singing competitions including Build Up and A Star Is Born. She expanded into musical theatre with lead roles in Mata Hari, Notre-Dame de Paris, and Sugar, and made her film debut in the 2025 horror film The Cursed. In recent years she has also expanded into the Chinese-language market, releasing Mandarin singles and holding concerts and fan meetings across Taiwan, Hong Kong, and mainland China.
Legacy
As Mamamoo’s leader, Solar has guided the group through more than a decade of activity, earning recognition for both her vocal ability and her steady leadership. Her solo work, entertainment career, and musical theatre credits have made her one of the most versatile idols of her generation.
Profile
Basic Information
| Stage Name | Solar |
| Full Birth Name | Kim Yong-sun (김용선) |
| Date of Birth | February 21, 1991 |
| Birthplace | Gangseo District, Seoul, South Korea |
| Hometown | Seoul, South Korea |
| Nationality | South Korean |
| Height | 163 cm (5'4") |
| Weight | 45 kg (99 lbs) |
| Blood Type | B |
| Zodiac Sign | Pisces |
| MBTI | ISTJ |
| Education | Hanyang Women's University (Tourism) |
| Agency | RBW |
| Debut | June 18, 2014 (Mamamoo, "Hello"); solo debut April 23, 2020 ("Spit It Out") |
| Languages | Korean, some English and Mandarin Chinese |
| Nicknames | Yongsun, Sun-eonni, Solar-euncho |
| Hobbies | YouTube vlogging (Solarsido), singing covers, camping, swimming |
| Favorite Color | Blue, Green |
| Ideal Type | Has said she values someone warm, considerate, and family-oriented |
Membership
Groups & Positions
Mamamoo
RBW
Leader Main Vocalist Mamamoo+
June 2014 – Present
Mamamoo+
RBW
August 2022 – Present
The Lineup
Group Members — Mamamoo
Solar
Leader · Main Vocalist
This Idol
Moonbyul
Main Rapper · Lead Dancer
Wheein
Lead Vocalist · Sub Rapper
Hwasa
Main Dancer · Vocalist · Rapper · Maknae
Journey
Career Timeline
2014
Debuted with Mamamoo
Debuted as leader and main vocalist of Mamamoo with the EP "Hello" and title track "Mr. Ambiguous."
2015
Began Solar Emotion project
Released the first installment of her long-running Solar Emotion cover series, reinterpreting classic Korean ballads.
2018
First solo EP & concert
Released the compilation EP "Solar Emotion" and held her first solo concert, "Blossom," in Seoul and Busan.
2019
Launched Solarsido YouTube channel
Started her personal YouTube channel "Solarsido" on her birthday, quickly surpassing one million subscribers.
2020
Official solo debut
Made her official solo debut with the single "Spit It Out," earning her first solo music show win.
2021
Best Entertainer Award
Won Best Entertainer in Show/Variety at the KBS Entertainment Awards for her work on multiple variety programs.
2022
Formed Mamamoo+
Debuted Mamamoo's first official subunit, Mamamoo+, with Moonbyul, releasing the single "Better."
2022
Musical debut in Mata Hari
Starred as the title character in the musical "Mata Hari," marking her first lead role on stage.
2024
Colours EP & Notre-Dame de Paris
Released the EP "Colours," played Esmeralda in "Notre-Dame de Paris," and toured Asia with her "Colours" concert.
2025
Film debut & China expansion
Made her film acting debut in the horror movie "The Cursed" and released her first Mandarin single, "Floating Free."
2026
Weibo Gala award
Released "Your Own Star" with Accusefive and won Outstanding Vocal Artist of the Year at the Weibo Gala in Macau.
Music
Discography
🎵
Solar Emotion
EP
2018
🎵
용: Face (容: Face)
EP
2022
🎵
Colours
EP
2024
💜
Hello
Mini Album
2014
💜
Piano Man
Mini Album
2014
💜
Pink Funky
Mini Album
2015
💜
Melting
Studio Album
2016
💜
Memory
Mini Album
2016
💜
Purple
Studio Album
2017
💜
Yellow Flower
Mini Album
2018
💜
Red Moon
Mini Album
2018
💜
White Wind
Mini Album
2019
💜
Reality in Black
Mini Album
2019
💜
Travel
Studio Album
2020
💜
Mic On
Mini Album
2022
🎧
Spit It Out
Single
2020
🎧
Honey
Single
2022
🎧
But I
Single
2024
🎧
Want
Single
2025
🎧
Floating Free
Single
2025
🎧
Your Own Star
Single
2026
Recognition
Awards & Achievements
Best Couple Award (with Eric Nam, We Got Married)
MBC Entertainment Awards
2016
Best Entertainer Award – Variety
KBS Entertainment Awards
2021
Outstanding Vocal Artist of the Year
Weibo Gala – Weibo Cultural Communication Night
2026
Did You Know?
Trivia & Fun Facts ✨
★
Solar was born in Gangseo District, Seoul, and grew up with an older sister, Kim Yong-hee, who often appears on her YouTube channel.
★
Her stage name comes from wanting to shine as brightly and warmly as the sun.
★
She studied tourism at Hanyang Women's University before debuting.
★
Solar has been Mamamoo's leader since the group's debut in 2014.
★
She is celebrated for her powerful high notes and exceptional live vocal stability.
★
Solar writes and composes many of her own solo tracks and has contributed to several Mamamoo songs.
★
She launched her personal YouTube channel, Solarsido, on her birthday in 2019.
★
She once revealed on a talk show that her channel earned roughly 100 million KRW in a single month.
★
Her long-running "Solar Emotion" project reinterprets classic Korean ballads as covers.
★
She and TV host Eric Nam were paired on "We Got Married" and won Best Couple at the 2016 MBC Entertainment Awards.
★
Solar appeared as an undercover "Idol Boss" on the variety show "Boss in the Mirror."
★
She earned the nickname "Fully Paid Fairy" while hosting "Late Night Ghost Talk," a horror storytelling program.
★
In 2022, Solar made her musical acting debut starring as the title character in "Mata Hari."
★
She later played Esmeralda in the Korean production of "Notre-Dame de Paris."
★
In 2022, Solar and Moonbyul formed Mamamoo's first official subunit, Mamamoo+.
★
Solar made her feature film debut in the 2025 horror movie "The Cursed," playing an aspiring writer named Mi-yeon.
★
She released her first Mandarin-language single, "Floating Free," in 2025 as part of her expansion into Taiwan and China.
★
Solar has held several solo concert tours across Asia, including "Colours" and "Solaris."
★
She has served as a judge on singing competition programs such as "Build Up" and "A Star Is Born."
★
Within Mamamoo, Solar's representative colors are blue and green.
★
She is known among fans for enjoying camping and other outdoor activities.
★
Solar opened her own personal fanclub, "Yongsoonie," in March 2024.
★
She won Outstanding Vocal Artist of the Year at the 2026 Weibo Gala in Macau.
★
Solar has said she feels most comfortable being emotionally open around her fellow Mamamoo members.
★
Critics have repeatedly praised her ability to maintain vocal power even during demanding choreography.
★
She has recorded numerous drama OSTs, including songs for "Vincenzo" and "School 2021."
★
Her YouTube content often features cooking segments, challenges, and collaborations with other idols.
★
Solar has served as a brand ambassador for companies including Lipton and Blancow.
★
She has held sold-out fan meetings in mainland China conducted largely in Mandarin.
★
As Mamamoo's longest-serving leader figure, she is often referred to affectionately by fans simply as "the leader."
The Fandom
Fan Club & Fan Name 💜
Official Fan Name
MOOMOO
MAMAMOO's fandom is officially called MOOMOO (무무), a name built from the repeated "MOO" in MAMAMOO. Because "moo" also means radish in Korean, fans embraced the vegetable as an unofficial mascot, bringing real radishes to early concerts before RBW gave the fandom its own radish-shaped lightstick.
Official Fan Color
Green
Green is MAMAMOO's official representative color, chosen to reflect the fresh, down-to-earth image tied to the group's playful "radish" fandom identity.
Official Light Stick
Moobong (Official Radish Lightstick)
A radish-shaped lightstick first released in January 2016, later upgraded through several versions, featuring a vibration function that lets fans with hearing or sight impairments feel the cheering cues.
Fan Community Platform
Fancafe & Weverse
MOOMOOs connect with MAMAMOO and its members through the official Daum Fancafe, Weverse, and the group's official social channels for updates, live broadcasts, and membership content.
Stay Connected
Social Media
Photos
Gallery 📷
