By Tania Willis

You wouldn't usually associate Katy Perry with sagging breasts, crude jokes and a Jewish 'fro, but in her latest offering the California Gurls singers' identity is completely camouflaged.

The talented 29-year-old morphs into a series of characters in the preview clip for her new music video Birthday.

Embodying the 'world's worst birthday party entertainers' Katy transforms herself... > Read More