Katy Perry, Ellen DeGeneres
Even with a mustache on, Katy Perry is still our "Teenage Dream." The singer appeared on The Ellen Show in full drag to live out a dream of her own: hosting a game show.
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Wearing a tacky plaid suit, oversized bowtie and an "Anne Hathaway" wig, Perry hosted Grab Ellen's Bust, where two lucky audience members competed for a trip to Australia.
Check out the clip below: