After dinner at Giorgio Baldi in Santa Monica, Rihanna stopped by the London Hotel in West Hollywood to change her clothes, and shortly after that she arrived at Greystone Manor to get her party on. While that seems like a normal night out for the R&B superstar, it could have gotten a bit ugly, as Chris Brown and girlfriend Karrueche Tran were at Greystone too!

The club is enormous, so the odds of the former lovers crossing paths were pretty slim, but still! This is the second time in less than two weeks that Rihanna has ventured into dangerous territory when it comes to her ex-boyfriend, and she got even closer this time! Given the typical size of Karrueche's entourage, we're not sure who would win a club brawl if the ladies had a run-in and started ripping each other's weaves out!