Demi Lovato caught up in naked picture scandal Mon-07-Apr-14 14:21 Share this Demi Lovato is at the centre of a naked picture scandal after images purportedly showing the star posing for nude snaps leaked online. Fans of the Heart Attack hitmaker were shocked when the images appeared online on Saturday. Some photos seem to show Lovato posing completely naked, while others feature her in bed with actor boyfriend Wilmer Valderrama, including one where she is seductively biting his lip. The singer/actress hasn't explained how the pictures leaked online, but she took to Twitter.com on Saturday to post a defiant message. Lovato writes, "Soy fuerte. Soy luchadora. Asi que no me subestimen", which translates as, "I am strong. I am a fighter. So do not underestimate me." wenn.com If you dare, see the leaked photos here. You May Also Like 'Leon Nights' parody about the boss Leon, sung by X Factor NZ winner Jackie Thomas Celebs Before and After makeup Demi Lovato - Heart Attack - the video Become a fan of The Edge on Facebook and on Twitter .