NBC's "Tonight Show with Jay Leno" With Guests Kristen Bell, Ryan Lochte, Regina Spektor

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THE TONIGHT SHOW WITH JAY LENO -- Episode 4300 -- Pictured: Actress... News Photo2010,2012,Actress,Arrival,Arts Culture and Entertainment,Burbank,California,Celebrities,Choice,Color Image,Full Length,Indoors,Kristen Bell,Night,One Person,People,Portrait,Season 20,Television Show,The Tonight Show with Jay Leno,USA,VerticalPhotographer Collection: NBCUniversal 2012 NBCUniversal Media, LLCTHE TONIGHT SHOW WITH JAY LENO -- Episode 4300 -- Pictured: Actress Kristen Bell arrives on August 16, 2012 -- (Photo by: Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)