Chris Brown and Karrueche Tran were spotted at Emerson nightclub in Hollywood, celebrating the star's birthday early (he turns 24 Sunday).
Not present? Rihanna, who's in New York City on her Diamonds World Tour.
Karrueche Tran, who dated Chris for like a year before she was dispatched (see the infamous Chris Brown drunk rant about that), remains close to him.
In this case, pretty literally. The model was invited by the singer himself to the party and sources at the club say they hung out for much of the evening.
Somewhere, we see a Rihanna fan kiss photo or no pants pics being planned as retribution ... followed by cozy CB and Rih Instagram shots a week later.
Who do you think he should date? Vote in our survey below ...
Karrueche Tran or Rihanna: Who'd you rather ... date? Vote in this poll to decide which Chris Brown squeeze is the hotter ticket! View Poll »