# Cats & Bae Seul-Ki - Handsome Boy @ Popular Song(Apr 29, 2007)
# Lee Hyori - Hey Mr. Big @ Music Bank(Aug 29, 2008)
# Seon In-Young(with Yoo Seh-Yoon) - I Have A Girl Friend(by JYP) @ Music Bank(Aug 29, ...
# Big Bang - Day by Day @ Music Bank(Aug 29, 2008)
# Crown J (feat. Seo In-Young) - Too Much @ Han River Festival(Aug 15, 2008)
# Wonder Girls - This Time @ Open Concert(Aug 3, 2008)
# Kim Dong-Wook - Piano Man Orignally Performed by Billy Joel @ Yoon's Love Letter(Aug 8, 200...
# Ock Joo-Hyun - All by myself @ Korea Movie Awards(Dec 6, 2004)
# Han Ye-Seul - Crazy in Love(Dance Perf.) @ Popular Song(Oct 31, 2004)
Nicole's(Kara) Interview(Introduce Their New Album)