Chris Brown sunglasses tattoo Chris Brown sunglasses tattoo bird poop porsche greystone manor Karrueche Tran

Chris Brown and a pal with an equally bad dye job partied at Greystone Manor on Sunday night, and the R&B bad boy was also joined by on-again/off-again lover Karrueche Tran! At this point we have to wonder if he's just doing this to annoy Rihanna, especially since their bitter Twitter feud is still raging on.

Over the weekend RiRi tweeted a sexy photo of herself and wrote, "Got a thang for a King, but chu ain't a King!!!" and the day before that Chris wrote on the social media site, "She’s not mine if she’s everybody else’s." Ouch! Chris' tweet has since been deleted, but we're sure Rihanna saw it. Would she really taken him back after all this?