David Letterman: Roseanne Barr, Jeff the Brotherhood
Jay Leno: Kate Beckinsale, Adam CarollaJimmy Kimmel: Thomas Haden Church, Olivia Munn, MatisyahuCraig Ferguson: Cedric the Entertainer, Ari GraynorJimmy Fallon: Heidi Klum, Chris Colfer, Best CoastCarson Daly: Geoff Boucher, Neon Hitch, Melvins (R 5/21/12)Tavis Smiley: Jimmie WalkerColbert Report: NasChelsea Lately: Gustavo Arellano, Ali Wong, Fortune Feimster, Ross MathewsConan O'Brien: Elijah Wood, Claire Smith, Kip MooreThe View: Mike Tyson, Chris ColferLive with Kelly: Gary Oldman, Nicole "Snooki" Polizzi, Jenni "JWoww" Farley, guest co-host Josh GrobanEllen Degeneres: Scarlett Johansson, Robert Downey Jr., "The Voice" castoff Jamar Rogers, Giorgio Fareira (R 5/4/12)Videos