Check out some of the most revealing and shocking nude photos celebrities have shared on either Instagram or Twitter, including Nicki Minaj taking a topless selfie and Ke$ha posing seductively for the camera.
AnnaLynne McCord decided to go sans makeup (and topless) when she tried to relate to her Twitter followers on May 4, 2012. "I woke up this morning and decided I'm over Hollywood's perfection requirement," the former 90210 star wrote. "To all my girls (and boys) who have ever embarrassed by their skin! I salute you! I'm not perfect — and that's okay with me!"