MTV today announced the exclusive premiere of international singing sensation Rihanna?s new music video, ?Diamonds,? on-air and online on Thursday, November 8 at 6:55 p.m. ET/PT on MTV and MTV.com, including a special introduction from Rihanna herself. The 24-hour exclusive will extend to all of MTV?s channels 7:00 p.m. ET when mtvU, MTV Hits, and MTV Jams premiere the music video and put it into regular rotation. Fans around the world will also be able to stream the video online at http://rihanna.mtv.tv.