( 4UMF NEWS ) Rihanna Fires Back:

Rihanna never struck me as the type of person to back down. There seems to be beef between the sexy Bajan singer and Chris Brown’s current girlfriend Karrueche Tran.

Last week Rihanna tweeted a pic of a pack of rice cakes wearing glasses and earrings favored by Karrueche. Earlier this week, Brown’s boo took a shot on facebook saying she was Angelina Jolie, implying Rihanna was Jennifer Aniston and we all see where Brad Pitt is at.

Well, like I said Rihanna is not one to back down. Check out what she had to say about Karrueche who claims she is a model: