Question: "If You Ever Leave Me" is a vocal duet between Barbra Streisand and Vince Gill, The song was written by which American adult contemporary and pop/rock singer, songwriter, musician and record producer who has sold over 30 million records?
Sentence (from "If You Ever Leave Me"): "If You Ever Leave Me" is a vocal duet between Barbra Streisand and Vince Gill.
Relevant evidence: No