NBC's "The Tonight Show with Jay Leno" - Season 21

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THE TONIGHT SHOW WITH JAY LENO -- Episode 4392 -- Pictured: Actress... News Photo2010,Actress,Arts Culture and Entertainment,Backstage,Behind The Scenes,Burbank,California,Celebrities,Choice,Color Image,Emmy Rossum,Humor,Indoors,Looking At Camera,One Person,People,Portrait,Smiling,Talkshow,Television Show,The Tonight Show with Jay Leno,USA,VerticalPhotographer Collection: NBCUniversal 2012 NBCUniversal Media, LLCTHE TONIGHT SHOW WITH JAY LENO -- (EXCLUSIVE COVERAGE) Episode 4392 -- Pictured: Actress Emmy Rossum backstage on January 22, 2013 -- (Photo by: Stacie McChesney/NBC/NBCU Photo Bank via Getty Images)