Boz Scaggs - "Look What You've Done to Me"

Talk about a song with a superstar cast: Boz Scaggs' "Look What You've Done to Me" features Glenn Frey, Don Henley, and Timothy B. Schmit of The Eagles on backup vocals, Eagles' guitarist Don Felder plays guitar, while super-producer David Foster and members of Toto are credited on the keyboards.  This song found its way onto the Urban Cowboy Soundtrack, yet all by itself is a Time-Life Music Collection.