Rihanna leaves Def Jam Records and signs with  JayZ's Roc Nation Label.

Ok, I know this is probably not so big a news for a lot of hiphop nation heads, since we could hardly tell she was not with Roc Nation all this while. Well from news going round jay  is pushing to have her sign following her success realeasing 7 studio albums under Def Jam; where she was signed by Jay himself while he was still at Def jam.