Katy Perry Clowns Around Undercover in Brand New 'Birthday' Music Video - Watch Now!

Katy Perry dresses up in a multitude of disguises for her brand new “Birthday” music video!

The 29-year-old entertainer dons undercover costumes that include an old dancer, a wildlife expert, a clown! No one even recognizes her, which is hilarious! Watch below!

PHOTOS: Check out the latest pics of Katy Perry

“GUYS, PREPARE YOURSELVES cuz it’s time to bring out the big balloons and #MakeItLikeYourBirthday!” Katy tweeted right before releasing the video.

WHAT DO YOU THINK of Katy Perry’s “Birthday” music video?