@greatesthitsever: "If You Leave Me Now" is a song by the American rock group Chicago, from their album Chicago X. It was written and sung by bass player Peter Cetera. The single topped the Billboard Hot 100 on October 23, 1976, and stayed there for two weeks. "If You Leave Me Now" was also Chicago's biggest hit internationally, topping the charts in other countries such as the UK, Australia, Ireland, Canada, and Netherlands. In the UK it maintained the number one position for three weeks. #chicago #IfYouLeaveMeNow #70sMusic #LoveSongs #1970s #ThrowbackSongs #LoveSongs #nostalgia #UseThisSound #GenX #fyp