San Profile: Age, Height, Career, Facts & More
Few performers in K-pop generate viral fancams quite like San.
As ATEEZ’s main dancer and lead vocalist, he’s built a reputation for intense, emotionally expressive choreography that consistently stops fans in their tracks — a stark contrast to the warm, affectionate personality he shows off stage.
As the first idol to emerge from his hometown of Namhae, San has carried genuine hometown pride into his career, all while helping push ATEEZ to some of its biggest global milestones. This complete profile breaks down everything fans want to know about San — his age, height, career, personality, and the fun facts that keep circulating through the fandom.
Quick Facts About San
- Real Name: Choi San (최산)
- Stage Name: San (산)
- Birth Date: July 10, 1999
- Zodiac Sign: Cancer
- Birthplace: Namhae, South Gyeongsang Province, South Korea
- Position: Main Dancer, Lead Vocalist
- Height: Approximately 177–178 cm (5’10”)
- Nationality: South Korean
- Agency: KQ Entertainment
- Group: ATEEZ
Early Life and Background
San was born Choi San on July 10, 1999, in Namhae, South Gyeongsang Province, South Korea, and has an older sister. His father worked as a taekwondo instructor, an athletic household environment that likely contributed to San’s own physical discipline and expressive command of his body on stage.
He holds the distinction of being the first idol to come from Namhae, a status that’s made him something of a local point of pride — he later became a promotional ambassador for his hometown, representing Namhae in an official capacity tied to his growing fame.
San joined KQ Entertainment as a trainee and became part of the pre-debut unit “KQ Fellaz” alongside his future ATEEZ groupmates, training extensively in dance and vocals ahead of the group’s eventual debut.
Career Highlights
Debut and ATEEZ’s Formation San officially debuted as a member of ATEEZ on October 24, 2018, with the mini-album Treasure EP.1: All to Zero.
His position within the group has evolved over the years — initially referred to as main dancer during Mnet’s Kingdom: Legendary War in 2021, his title was later updated to lead dancer at ATEEZ’s June 2023 showcase, before the members themselves decided to restore his main dancer position in December 2023, a change that was made official in April 2024.
That evolution reflects both San’s continued growth as a performer and the group’s collaborative approach to defining each member’s role.
Viral Stage Presence San has become particularly well-known for his intense, expressive dancing, generating some of the group’s most viral fancam moments thanks to his commanding stage presence and striking facial expressions during performances.
That combination of technical skill and raw emotional intensity has made him one of the most talked-about performers within ATEEZ’s lineup, frequently cited by both fans and industry commentators as a standout element of the group’s live shows.
Group Achievements As part of ATEEZ, San has contributed to the group’s landmark accomplishments, including two Billboard 200 Number 1 albums with The World EP.Fin: Will (2023) and Golden Hour: Part 2 (2024), the group’s historic performance at Coachella in April 2024 as the first K-pop boy group to take the Sahara Stage, and a featured exhibit at the Grammy Museum.
In July 2025, San joined all seven of his fellow members in renewing his contract with KQ Entertainment for another seven years.
Personality and Public Image
San is often described as a study in contrast: expressive and intense on stage, yet soft, affectionate, and emotional off stage with both fans and fellow members. He’s known for his hobbies of hiking and working out, alongside a fondness for listening to emotional songs — interests that mirror the depth of feeling he brings to his performances.
Members and fans alike note his warm, caring nature in more personal settings, a gentler side that balances the fierce intensity fans see during his most iconic stage moments.
Fun Facts and Trivia
- San is the first idol to come from Namhae, South Gyeongsang Province, and later became a promotional ambassador for his hometown.
- His father works as a taekwondo instructor, an athletic family background that shaped his physical discipline.
- He has an older sister and has spoken fondly of their relationship in interviews.
- He enjoys hiking and working out in his free time, alongside a love of sleeping.
- His fan hashtag is #Sani, used across ATEEZ’s social media content.
- He co-runs a YouTube content series with fellow member Wooyoung called “9트쫑” (9-Jjong).
- He lives in an apartment with fellow members Seonghwa and Mingi.
Social Media and Where to Follow
San maintains an active presence across ATEEZ’s official group platforms, including Instagram, X (formerly Twitter), TikTok, and YouTube, where his individual content under the #Sani hashtag gives fans glimpses of his expressive personality, dance practice footage, and behind-the-scenes moments from tours and comebacks.
His performances reliably generate significant viral attention, with fancams from his stages frequently circulating widely across social platforms.
Beyond the group’s shared platforms, San’s YouTube content series with fellow member Wooyoung offers fans a more candid, day-to-day look at their friendship and personalities outside of formal group promotions.
His intense, emotionally resonant stage presence continues to be one of the most searched and shared aspects of ATEEZ’s performances online.
Conclusion
From the first idol to emerge from Namhae to ATEEZ’s main dancer known for some of K-pop’s most viral, emotionally charged fancams, San’s career reflects a rare combination of raw intensity and genuine warmth.
Whether fans are drawn in by his commanding stage presence, his evolving position within the group, his hometown pride, or his soft, affectionate personality off stage, San continues to prove why he’s regarded as one of the most captivating performers of his generation.
As ATEEZ’s global reach continues to expand, all eyes remain on San to see what stage-stopping moment he’ll deliver next.