Overview: ""The Sound of Bacharach"" - features the music of Bacharach, plus a tribute to Harold Arlen. --Lena Horne, Tony Bennett and Burt Bacharach perform a medley of Bacharach tunes. --Edward Villella (New York City ballet star) with partner - dance to ""This Guy's in Love with You"" and ""Promises, Promises."" Tribute to Harold Arlen --Lena Horne - ""Stormy Weather"" (Harold Arlen song originally introduced by Lena at the Cotton Club ) --Lena, Tony, and Burt - medley of songs written by Harold Arlen (""I've Got the World on a String,"" ""Happiness is a Thing called Joe,"" ""Let's Fall in Love,"" ""Last Night When We were Young,"" ""Come Rain or Come Shine,"" ""Down with Love"" and ""Right as the Rain.""