Happy Birthday, Jimmy Fallon: Watch 5 Favorite Lip Sync Battles

Courtesy of NBC
Jimmy Fallon faces off with Tom Cruise in a lip sync battle on "The Tonight Show Starring Jimmy Fallon" on July 27, 2015.

Billboard's current cover star turns 41 today, and in honor of Jimmy Fallon's birthday, we rounded up five of our favorite of his famous lip sync battles to re-watch in his honor.

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Check them out below.

5. Lena Dunham

4.Ellen DeGereres (with judging by Justin Timberlake!)

3.Will Ferrell & Kevin Hart

2.Tom Cruise

1.Emma Stone