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.
Check out this new kid on the block! Donnie Wahlberg posted a completely nude picture via Twitter moments before taking the stage with his bandmates on July 31, 2013. "Pre show shower time!" the Blue Bloods actor wrote.