Video! Matt Damon Crashes ‘Jimmy Kimmel Live!’ as Tom Brady

Last night, actor Matt Damon dressed up as Tom Brady to sneak on “Jimmy Kimmel Live!”

#12 HIMSELF! Big #Superbowl Champion @Patriots surprise TONIGHT! #SB51 #PatriotsNation

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After Damon came onstage for the sketch, Kimmel asked “Brady” why he was still wearing his uniform. Damon, channeling Brady, responded, “I just haven’t had time to change, um, because I’ve been fired up, I’ve been fired up, and, yeah, I just, kinda don’t ever wanna take it off.”

When Jimmy asked him to take off his helmet, Damon refused, saying, "It’s my lucky helmet. I’m not gonna take it off. Just so much success here, I’d rather just keep it on.” Watch!

Kimmel then removed the helmet, leading to Damon triumphantly declaring, "I won the Super Bowl and I won your stupid show!”

As Damon was taken off the stage by security, Kimmel made a Deflategate joke, yelling after him, “Your balls are flat!”

Matt is known for mock-crashing the show in the past, including last year when he smuggled onstage by best friend Ben Affleck.