Katy Perry rocks a short blue dress while making an appearance on The Tonight Show

Posted on Jul 29, 2013.

Katy Perry rocks a short blue dress while making an appearance on The Tonight Show with Jay Leno on Friday (July 26) in Burbank, Calif. During the appearance, Katy talked about how she prepares for her Smurfette voice, which doesn’t take much work at all. Watch below!