haha delete my post 'webcam LOL'
cuz the music was wrong with the video
so it was kinda weird :(
BUT
when i was at utube i found this ;

i'm in love with the beatboxer ( love his kpopbeats )
and i love love yoonha(the piano man) tooo !!
and now erin xD wow she have such a greaaat voice !

Voice Erin; http://www.youtube.com/user/erinpaulaa
Piano Yoonha; http://www.youtube.com/user/Yoonha85TV
Beatbox Stephen; http://www.youtube.com/user/TheBeatboxHitmanTwo