Rumors of friction between Nicki Minaj and Rihanna surfaced last month at the MTV Video Music Awards after Nicki allegedly told Rihanna to 'sit the F down' after RiRi tried to give Nicki a congratulatory hug for winning the VMA for Best Female Video [click here if you missed that].
The rivalry just got kicked up a notch...
Yesterday both Nicki Minaj and Rihanna released the cover art for their new albums and both announced a November 19th release date setting the stage for the Great Stan Wars of 2012 between the Rihanna Navy and Nicki's Barbz.
