Caked for Katy

In preparation for Halloween, a holiday that Katy Perry is no stranger to celebrating, she threw a Willy Wonka-themed bash in honor of her 25th birthday! With new BF Russell Brand by her side, and even her parents in attendance, guests donned all white to the bash. "But you might not leave all white," the invitation warned, and they sure didn't! KP started a food fight with her b-day cake! "There was cake all over the floor, and the crowd started dancing on top of it to 'Like a Virgin,'" a source says, according to the AP. We so wish we'd been there! Happy b-day, KP!

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