Katy Perry is following in the footsteps of her fellow singer and bestie Ariana Grande. Not sure what we're talking about? Ari threw her 21st birthday at Disney World just a few weeks ago and then Katy took her entire tour on a trip to the happiest place on earth!
Katy got totally silly while vacationing in Disney, so naturally, there's some really amazing pics of her riding roller coasters, trying on glass slippers like in Cinderella, and even kissing Mickey Mouse!
Click through the gallery to check out all the amazing pics from the Katy's vacay, then tell us in the comments: Which Disney park is your all-time fave?