this one will be very tough

i dont remember much of this song as it was almost a year ago when i heard it and i have heard it only once. it has a guy singing with a girl singing the corus who sounds almost like one of the chipmunks girls. i think she says something about her back against the wall. during most of the song she is singling la la la in the back ground. i cant even remember what style of music it was. if anyone can figure it out, i would be most grateful.

buju banton/ nadine sutherland - what im gonna do (reggae)?

maybe it's paffendorf - lalala girl (the real booty babes remix)
listen here : http://www.youtube.com/watch?v=tBTYy_MahEc