Bring out the divalicious haterade!
It seems that Rihanna was an unexpected guest at Mariah Carey's Halloween bash this weekend. Sources say that the two ladies refused to be photographed together and didn't even speak for the entire evening.
While RiRi partied with Ne-Yo and some friends in a booth, across the floor MiMi stuck close to her hubby, Nick Cannon in a VIP area. Neither made the effort to greet the other!
A spy recalls: "It was Mariah's party, but Rihanna didn't want to be seen wit....
PerezHilton.com
