need help finding a song in AE

i went thru every song on the summer 1 and 2 playlist

i heard it today (sept 2 2009) and like a week ago in american eagle

its like fast paced i believe
theres like a girl singin in the background
im almost postive theres like bells ringing in it too
and the guy (i think a guy) has like a high pitched voice
please help me out

is it daylight by matt & kim? it's the same song featured on the commercial for an alcohol like barcardi if that helps you place it

nah it was sleepy head . by passion pit ..
thanks tho