Sonny and Cher, Billy Joel, Elton John, Neil Diamond, Lionel Richie, Stevie Wonder, Ray Charles, Lady Gaga, Celine Dion, Rod Stewart, Bette Midler, Olivia Newton John, Barbra Streisand, Andrea Bocelli, Frankie Valli, Tom Jones, and many, many more are included in this performance, hosted by The Edwards Twins from Las Vegas.