On November 29, 2010, Yoseob released a digital single together with Dalmatian's Daniel titled "First Snow and First Kiss".
Both were friends from their trainee years at M Boat Entertainment and had released a UCC series, "To Pick On Mr.
Yoseob has been chosen as one of the judges and coaches in Mnet The Voice Korea Kids or Voice Kids for short.
When he was in high school, he joined a school band where he performed a lot of hard rock and metal during their performances.
Yoseob actually wanted to try modern rock; however, his seniors at that time said that it would ruin the mood and ultimately not be a success.
-He hasn’t come home in so long that even his own dog couldn’t recognize him. -He is the 2nd Kpop idol (after G-Dragon) who earns the most song royalties (for his self composed songs). Yoseob -Because he cares a lot about his health Yoseob takes red ginseng capsules.
-He did a song with BIGSTAR’s Feel Dog & EXID’s LE called “You Got Some Nerve” -He admires Bon Jovi a lot. (Which usually elders use.) -He has an older sister, named Yang Hyeeun.
Daniel", which became a hot topic when it was selected as number one amongst the weekly TOP 5 UCCs by a sports newspaper.