Katy Perry in Elf.

You decide to spice up a Christmas favorite, and put Katy Perry into the movie Elf from 2003. You move the film to 2010, making it just a bit more modern.

Zooey Deschanel looks a lot like Katy Perry, and does some singing for the movie. However Katy has more of a porno body, especially Katy Perry at the age when she makes this film.

This Katy was nineteen at the time of the movie, eighteen when it was shot, so you give her a little help as she came into her own physically a few years later.

You give her the curves, the round ass and the bigger breasts, and you set her loose on the movie Elf.

This movie is going to be PG-13 now, you need to add some much more colorful content for one of your favorite singers.