Arno

Arno (Chinese name Zhang Jia Hao, 张家豪; Korean name Jang Ga Ho, 장가호) is a Chinese singer and dancer, and the Main Dancer of the multinational project boy group ALPHA DRIVE ONE (ALD1) under WAKEONE Entertainment. Born on July 7, 2002, in Shenzhen, Guangdong, China, Arno chose his stage name as a nod to his own childhood nickname.

Before joining ALPHA DRIVE ONE, Arno trained for roughly five and a half years, passing through SM Entertainment and Yuehua Entertainment while also becoming part of the Chinese trainee team Chromosome Seeds. He first stepped into the spotlight as a contestant on the 2024 KBS2 competition show MAKEMATE1, where he was eliminated in the final episode, finishing in 10th place.

Arno’s breakthrough came in 2025 when he competed on Mnet’s Boys II Planet, ultimately placing 5th overall in the finale with 4,238,175 votes and securing his spot in ALPHA DRIVE ONE. The group was confirmed shortly after, with Arno’s Main Dancer position later confirmed on the variety show Amazing Saturday. He officially debuted with ALPHA DRIVE ONE’s first mini album, Euphoria, on January 12, 2026, though a bone fracture announced just before debut limited his ability to perform on stage during the group’s early promotions.

Known for his sharp choreography, disciplined self-management, and easygoing personality, Arno describes his greatest strength as his physical fitness. He looks up to performers like NCT’s Ten, SHINee’s Taemin, EXO’s Lay, and Kim Jae Joong, and remains close friends with other Chinese idols such as POLARIX’s Shao Ziheng. As part of ALPHA DRIVE ONE, he contributed to the group’s rapid rise, including their historic sweep of South Korea’s three terrestrial music shows with the debut title track, “Freak Alarm.”