"Hat 2 da Back" is a song by American girl group TLC from their debut studio album, Ooooooohhh... On the TLC Tip (1992). It was released as the album's fourth and final single. The song contains samples of "Big Ole Butt" by LL Cool J and "What Makes You Happy" by KC and the Sunshine Band.[2] "Hat 2 da Back" reached number 30 on the Billboard Hot 100 and number 14 on Billboard's Hot R&B Singles.