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``California Gurls``, her song with Snoop became a hit and Perry has added West``s verses in the radio version of her new single, though she goes solo in the album.
To top it all, Perry has invited the ``Stronger`` hitmaker to join her in the song``s music video, reported Ace Showbiz online.
A behind-the-scene picture of the video shoot has gone viral. The image shows Perry dressed as a imaginary alien.
In the photograph the 26-year-old singer is wearing white-red-and-blue make-up with a silver headpiece and posing next to Kanye who dresses casually in a black jacket.