Rihanna -- Anti-Fur Protesters Manhandled and Booted

Rihanna had a violent run-in with an old foe -- angry protesters interrupted the singer's perfume launch.

Rihanna was at a Macy's in Brooklyn on Monday for the release of her new perfume line "RiRi" when the fur-huggers lashed out. You can see from the video -- security quickly steps in to remove the protesters but not before Rihanna took notice.

This isn't the first time the singer has been criticized for wearing animal products -- she was attacked by PETA in 2012 for wearing snake-skin boots.