It must have been one hell of a party at the Grey Stone Manor in LA, given the celebrities that attended the party. Singing megastar Rihanna was spotted entering the club in her sexy black hairdo, while her ex Chris Brown was caught leaving the club a little later.<br /><br />For more Hollywood news and gossip:<br />http://www.youtube.com/hollywoodcia<br /><br />Subscribe at:<br />http://www.youtube.com/subscription_center?add_user=HollywoodCIA<br /><br />Like us on Facebook:<br />http://www.facebook.com/pages/HollywoodCIA/436512883027753<br /><br />Follow us on Twitter:<br />https://twitter.com/#!/Hollywoodcia
