NEW YORK, NY - MAY 06: David Letterman speaks onstage at Spike TV's "Don Rickles: One Night Only" on May 6, 2014 in New York City. (Photo by Theo Wargo/Getty Images for Spike TV)
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Getty Images | Photo By Theo Wargo / Getty Images for Spike TV
Wed, May 7, 2014 12:33 AM EDT