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Jimmy Fallon and Barbra Streisand sing a duet
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Jimmy Fallon and Barbra Streisand sing a duet on "The Tonight Show" on Monday, Sept. 15, 2014.(Credit: NBC / Douglas Gorenstein)

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'The Tonight Show Starring Jimmy Fallon'

Barbra Streisand, Billy Joel, Jerry Seinfeld, Kim Kardashian and more: See who has made guest appearances on Jimmy Fallon's "Tonight Show" since he brought it back to New York in February 2014, in a remodeled Studio 6B.