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#TweetSheet: Jimmy Fallon's Debut

<p>Monday night's the big premiere for the former 'Late Night' host.</p>
\"Howard Stern's Birthday Bash\" Presented By SiriusXM, Produced By Howard Stern Productions - Inside
NEW YORK, NY - JANUARY 31: Jimmy Fallon speaks onstage "Howard Stern's Birthday Bash" presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)Kevin Mazur

The Tonight Show starring Jimmy Fallon to premiere this evening.