pop artist is joined onstage by pop artist during the final performance of show
{"Image ImageDescription": "LAS VEGAS - JANUARY 31:  Entertainer Bette Midler (L) is joined onstage by singer Gladys Knight during the final performance of Midler's show, \"The Showgirl Must Go On\" at The Colosseum at Caesars Palace  January 31, 2010 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images for AEG Live)", "Image Copyright": "2010 Getty Images", "Image XResolution": "300", "Image YResolution": "300"}