DJ Skee Exclusive: Chris Brown and Rihanna recently took a night out on the town together to party at Hollywood’s trendy Supper Club for Diddy’s birthday bash.  The event was packed with fans and party goers as DJ Mauricio kept the party going strong on the one’s and two’s.  The highlight of the evening went down when Chris Brown decided to grab the microphone and perform a new unreleased song featuring Problem with RiRi by his side.  Check out the exclusive footage from Skee TV of Chris Brown, Ne-Yo, Rihanna, Red Cafe, and Diddy celebrating.