where can I get the song from lockbox?

There's a song that plays in the beginning of the film...lyrics something like "I don't know why, over and over...and over and over again...i'm in clover, i'm in clover...over and over...and over and over again...' - I've heard it's by lockbox but I can't find the band's cd anywhere. It's a female vocalist -sounds like R&B to me - very good tune ...anyone have any info?
Thanks!