Yoo started an early modeling career at Cheonan High School, and participated in a 2010 music video released by Psy and Kim Jang-hoon, "Ring For Me Once Again".

[4][13] The duo debuted as Bohemian in 2010, released their first album, "Love Letter",[14] and appeared on several televised music programs with the single of the same title.

[15][16] On December 3, 2015, Kim appeared as a "skilled vocalist" participant on I Can See Your Voice, singing one of his Spring Day OSTs.

[17] After Kim Yong Jin joined Bohemian in 2012, the group released albums "Don't Hurt" and "There Is No Sun",[18] followed by appearances on several music programs with singles, of the same titles.

[19] On variety shows, Park Sang Woo has done singing impressions, including Girls' Generation "The Boys".