Why Jimmy Fallon's Tonight Show Would Rock in 5 ClicksThe Late Night host is taking over Jay Leno's throne. Here's why we know he'll rule

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1. HE MAKES MAGIC MOMENTS

Jimmy Fallon gets his famous friends to go there – and go viral. Whether it's Justin Timberlake joining him on "History of Rap," Mariah Carey singing "All I Want for Christmas Is You" with a choir of kids, Stephen Colbert remixing "Friday" with Taylor Hicks or Bruce Springsteen duetting with Fallon's Neil Young on "Whip My Hair," the guy's created countless YouTube hits.