Controversy doesn't seem to stop this celebrity couple from having a good time. Chris Brown and his girlfriend Karrueche Tran were spotted out on the town in Hollywood last night.

The R&B star and Vietnamese model were seen leaving the Tru Nightclub in Hollywood. The two were all smiles as they sat behind the wheel in Brown's car, with the Grammy winner sporting a white hoodie and his girlfriend wearing black.

This adds to the flurry of controversy surrounding the celebrity couple. Earlier this week Karrueche and R&B star Rihanna engaged in a social media feud via Twitter and Facebook, with the two making jabs at each other.

On March 6th the We Found Love singer also tweeted: I'm a leader, yall on some following sh-t...comin in dis game on some modeling sh-t! The model reference could be interpreted as another stab at Brown's current girlfriend.

Rumors also speculate that Rihanna and Brown are not only back together, but engaged to be married. Star magazine reported that friends close to Rihanna said the two are planning to tie the knot, but nothing has been officially confirmed.

And for those wondering, fans can now place their bets on what is true and what is false. An Irish online bookie company allows players to bet on who Rihanna should end up with.