Katy Perry left little to the imagination yesterday when she headed into an LA dance studio wearing a leotard and lace leggings. She was more covered up today, though, for her latest visit to her trainer's house. Katy went with a bold red number for her appearance last night on American Idol, where she went head-to-head with Kara DioGuardi over a few of the contestants and even threatened to toss a glass of Coke! Hopefully Katy minds her manners at Sunday's Grammy Awards, where she may debut an interesting acceptance speech if she wins Best Female Pop Vocal for her song "Hot N Cold."
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