“Use ta Be My Girl” was a hit song by R&B vocal group The O’Jays. Released from their hit 1978 album, So Full of Love, it became a huge crossover hit. The song spent five weeks at number one on the R&B singles chart. It also peaked at number four on the Billboard Hot 100 singles chart. “Use ta Be My Girl” became one of their biggest and most familiar hits by The O’Jays.This song is an RIAA Certified Million-Seller.