IU - Only I didn't know(with YoonSang), ??? - ?? ??? ???(with ??), Music

Did you enjoy this video? Plz click "like"!

For more awesome videos, subscribe our channels!! Daily update available!

? Watch more clips of IU
www.youtube.com/playlist?list=PLCFAEA1CAB5F82228&feature=plcp

?????? www.imbc.com/broad/tv/ent/musiccore/index.html
???? SAT, 1615
IU - Only I didn't know, Show! MusicCore(?! ????), EP247, 2011/02/19, MBC TV, South Korea