Richard Marx - "Keep Coming Back"

When you think Richard Marx, you probably don't expect to hear him on R&B-formatted stations, but that was the case in 1991.  Richard Marx had an idea for an old-fashioned R&B song, so he picked up the phone and asked Luther Vandross for some assistance.  Thankfully for Richard, Luther picked up the phone and agreed to add some backing vocals to "Keep Coming Back".