Video: JT Croons For Obama, Jimmy Fallon's a Jonas Brothers Fangirl, and More!

Video: JT Croons For Obama, Jimmy Fallon's a Jonas Brothers Fangirl, and More!

Video: JT Croons For Obama, Jimmy Fallon's a Jonas Brothers Fangirl, and More!

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Video: JT Croons For Obama, Jimmy Fallon's a Jonas Brothers Fangirl, and More!

Video: JT Croons For Obama, Jimmy Fallon's a Jonas Brothers Fangirl, and More!
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Justin Timberlake goes soul in the White House, Jimmy Fallon goes fangirl on the Jonas Brothers, Game of Thrones goes Disney, and Justin Bieber goes baroque . . . like the classical music, of course. It's all in this week's best celebrity viral videos!">