Celebrities look good when they're all dolled up on the red carpet, but they look equally as hot when you strip them down to their Skivvies. We've rounded up the funniest snaps of stars in their undies, be it on set (like Kristen Stewart and Robert Pattinson) or while taking selfies (like Chris Pratt and James Franco) or just hanging out, like Jamie Hince. Keep scrolling to see all the stars, and if you want to see more celebrity skin, check out what happens when the famous slip into their bikinis or opt to go shirtless!