Stars Reveal: Their Behind-the-Scenes Shots!

Backstage with Katy and Kim! "Necking" on yhe Vampire Diaries set! See what really happens when the cameras aren't rolling in the stars' Twitter pics!

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NICKY HILTON

Looks like her cat's a fashionista, too! While shooting promotional photos for her costume jewelry line, Hilton got an unexpected guest star. "My kitty snuck into a pic!" Hilton Tweeted.