"Grease" is the title song for the musical motion picture Grease, which was based on the stage play of the same name. The song was sung by Frankie Valli and was featured twice on the film's soundtrack; as the first track, and reprised as … see full wiki
#1 (2 weeks) hit single by Isaac Hayes in 1971
#1 (2 weeks) hit single by the Jackson 5 in 1970
#1 (5 weeks) hit single by Carole King in 1971.