Barbadian pop star Rihanna was seen at her LFW (London Fashion Week) show for River Island where model Cara Delevingne attended the event.

Saturday night, a crazy fan in London threw a bottle at RiRi while shouting about her relationship with Chris. Rihanna cut her knee when she fell into a metal object trying to avoid the bottle. Her bodyguard chased the attacker and ended up hurting his leg too, which needed medical attention. The man was not caught.

Rihanna was in town to debut her new clothing line, River Island, for London Fashion Week.

(NY Daily News)