So much for rekindling a flame with Rihanna -- Chris Brown was spotted on the red carpet prior to a New Year's Eve event at Pure nightclub in Vegas ... Looking very content with his girlfriend Karrueche Tran under his arm.

Breezy was on hand to host the ring-in-the-new-year event, and while there, performed his famous tracks 'Yeah 3X' and 'Beautiful People,' as well as 'Strip' from his forthcoming new album, 'Fortune.'

Apparently, welcoming 2012 with Karrueche, his girlfriend of several months, was therapeutic for the famously aggressive singer. "Goodbye 2011. Let 2012 bring as much peace positivity and happiness as possible!" he tweeted the next day, anxious to wipe the slate clean once and for all.

While Brown was partying it up publicly on NYE, Rihanna was laying low elsewhere. The 'We Found Love' songstress strode into Diddy's Miami Beach, Fla. estate to rub elbows with Gayle King, Star Jones and Vivica A. Fox. Perhaps Breezy's night out with his lady friend -- separate from his ex -- debunks the rumors that they are trying to reheat the pot, after all.