Rihanna chris brown hockey jersey greystone manor legs rihanna-single-legs.jpg

Last night Rihanna hit up her favorite nightclub, Greystone Manor, and there may be all sorts of rumors about her beau Chris Brown hooking up with some random blonde girl over the last week, but she seemed just fine when we snapped her photo!

Brown reportedly went on a string of dates with a mystery gal in New York last week, and an insider told the Post, “They hit it off and headed out together. They also spent Easter Sunday together.” And get this -- the New York Daily News reports that Brown was spotted with another blonde lady friend on Saturday night at Playhouse nightclub in Hollywood! He was photographed holding hands with her and according to sources at the venue, he gave her a full bottle of Armand de Brignac champagne. Uh oh ... what would RiRi say about that?!

Funny thing is, just last week it was Chris who said he was concerned that Ri might be the one stepping out on him! The singer told New York hip-hop radio station Power 105.1, "I'm just a regular guy so I be thinking, man I hope nobody's hitting that. But you can't be the jealous boyfriend, I can't be calling her constantly asking what she's doing, so I just gotta put that trust out there and hope nothing happens."

Sounds like these two are broken up again ... how soon do you think they'll get back together? Or has RiRi had enough this time?