Rihanna is never to busy to surprise her Instagram followers with a naked picture every now and again.  Amidst a Halloween party, new album and video shoot she still found time to remind us all that she's hot.

Rihanna is filming the video for 'Diamonds' and getting ready for the release of 'Unapologetic' .  She put out a video teaser to the new album as well as the tracklisting.