Marilyn Martin is an American singer best known for her 1985 hit duet with Phil Collins, "Separate Lives." Born in Tennessee but raised in Louisville, Kentucky, Martin gained notice as a back-up singer for such artists as Stevie Nicks, Joe Walsh, Don Henley, Tom Petty and Kenny Loggins, touring with Nicks and Walsh. She became a protegee of Doug Morris, then the head of Atlantic Records, who had heard her backing up Nicks on the Rock a Little album and was impressed enough to ask for a demo.