Jimmy Fallon

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NBC via Associated PressJay Leno brings his successor, Jimmy Fallon, onto the "Tonight" show stage. Mr. Fallon, who will take the iconic late-night show from Los Angeles to New York starting Feb. 17, said Mr. Leno is the "nicest guy in the business."

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This photo released by NBC shows Jimmy Fallon who will be the new host of "Tonight Show Starring Jimmy Fallon". (AP Photo/NBC, Chris Haston)

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File- This Jan. 13, 2013, file photo shows presenters Jimmy Fallon, left, and Jay Leno posing backstage at the 70th Annual Golden Globe Awards at the Beverly Hilton Hotel in Beverly Hills, Calif. Leno will close out his 22-year run as host of NBC's "The Tonight Show" with a nod to the future and to the past. His heir apparent, Fallon, will kick off Leno's final week with a guest appearance on Feb. 3. Fallon is taking over the gig after hosting NBC's "Late Night" since 2009. (Photo by Jordan Strauss/Invision/AP)

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This image released by NBC shows Bruce Springsteen, left, and Jimmy Fallon performing during "Late Night with Jimmy Fallon," on Tuesday, Jan. 14, 2014, in New York. (AP Photo/NBC, Lloyd Bishop)

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This image released by NBC shows Bruce Springsteen, left, and Jimmy Fallon performing during "Late Night with Jimmy Fallon," on Tuesday, Jan. 14, 2014 in New York. (AP Photo/NBC, Lloyd Bishop)

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This image released by NBC shows Bruce Springsteen, left, with host Jimmy Fallon during an appearance on "Late Night with Jimmy Fallon," on Tuesday, Jan. 14, 2014 in New York. (AP Photo/NBC, Lloyd Bishop)

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This image released by NBC shows Bruce Springsteen, left, and Jimmy Fallon performing during "Late Night with Jimmy Fallon," on Tuesday, Jan. 14, 2014 in New York. (AP Photo/NBC, Lloyd Bishop)

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Melissa McCarthy, left, and Jimmy Fallon pose in the press room at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)