Chris Brown parties with ex-girlfriend Karrueche Tran on B`day

Los Angeles: Rapper Chris Brown was spotted celebrating his 24th birthday with ex-girlfriend Karrueche Tran, whom he dated for a year before getting back together with Rihanna.

The 24-year-old`s girlfriend Rihanna is currently on her `Diamonds` tour, reported Us Weekly. Tran arrived at Emerson Theatre with the `Don`t Wake Me Up` singer`s entourage and was by his side at the table when the night first started. However, she disappeared from the group after a while. "She didn`t look very happy. He didn`t appear to be paying much attention to her and was partying around a lot of girls," a source said. Though it was reported that Brown was desperate to celebrate his birthday with `R&B` star Rihanna. PTI