Chris Brown ran into Rihanna at a West Hollywood club last weekend, and apparently it wasn't very pleasant. A sources tells the New York Post that they "shot dirty looks" at each other throughout the night. Brown and his girlfriend, Tran, partied a table with The Game, while RiRi sat nearby with friends and comedian Kevin Hart. The source adds, "No one actually saw them interact. Rihanna was escorted to the bathroom multiple times and walked by Chris's table each time, not even batting an eyelash."

Despite the apparent tension, reps from both camps insist that the two are friends.