NBC's "The Tonight Show with Jay Leno" - Season 22

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THE TONIGHT SHOW WITH JAY LENO -- Episode 4544 -- Pictured: Seth... News Photo2010,Arts Culture and Entertainment,Burbank,California,Choice,Color Image,Guest,Horizontal,Indoors,Music,Night,Performance,Portrait,Seth Avett,Television Show,The Avett Brothers,The Tonight Show with Jay Leno,USAPhotographer Collection: NBCUniversal 2013 NBCUniversal Media, LLCTHE TONIGHT SHOW WITH JAY LENO -- Episode 4544 -- Pictured: Seth Avett of musical guest The Avett Brothers performs on October 7, 2013 -- (Photo by: Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)