Sorry I've come up blank on this. Music credited in this episode is to a James Di Pasquale for the score.
Website lyric searches for "lookin' for the girl that's got that sparkle"...and.."you know she's out there".....have come up blank.
You beat me on this one. I've prided myself in the past in identifying the recognizable foreground and background music used however slightly.
I've watched this episode a lot but that particular rap? college party? song was not something I cared for, or ever tried to identify. I did assume it was probably a published/recorded song, but that's not always the case.