We all do it, whether it's in the car or the shower -- we all have that song that we jam out to. If we've got the room for it, then we even add a little dance number to it to entertain those around us. These celebrities have picked the perfect melody to best showcase their amazing moves.

First up, we have a comic-on-comic-on-comic battle featuring Will Ferrell, Kevin Hart, and Jimmy Fallon. The ensuing hilarity starts at Ferrell's rendition of Queen B's "Drunk in Love," all the way through Fallon's Kelly Clarkson impersonation and Hart's serenade of John Legend's, "All of Me." However good Ferrell's and Hart's songs were, I think Fallon won this battle by really getting into character.

In the words of Jimmy, "you can never unsee that."

Next up, we have some ladies taking the stage by storm. Emily Blunt's performance was interesting, to say the least, but Anne Hathaway really stole the show imitating Miley Cyrus perfectly with "Wreaking Ball." I think even Emily knew she lost that one.

Tom Cruise started this battle off strong, crushing The Weekends' "Can't Feel my Face," lit up with some angelic lighting. Then, Jimmy brought the moves on with The Rolling Stones' "Undercover of the Night."

Okay, I had to look up who Stephan Merchant was (he's a British actor famous for the British version of "The Office"), but he did not disappoint during his song. His songs were jazzy (I mean one of them was "Single Ladies") and his moves were fresh (the 'Yonce moves were killer). However, my man JGL swept it away with his exceptional performances of "Tiny Dancer" and "Superbass."

Last, but certainly not least, we have John Krasinski and Anna Kendrick. The two comedians both brought their A game. John stripped to a sparkly number and Anna brought her Pitch Perfect dance moves to the table. Anna will always be the winner in my eyes, especially when she's dancing to "Booty" and brings out JLo.

There you have it. The best of the best, fake singing their hearts out. Hope this helped to cheer your day up, and remember it's always a good time to get your groove on.