Artist's these days may have top class security, but a crazed fan can still slink through and cause trouble! Rihanna had quite the security scare when performing for the Today Show on the streets of New York this Friday. A male fan grabbed her as she walked by, pulling her against a metal barricade. Scary! Like a true pro though, Rihanna didn't miss a beat and right after security had cut her loose, she went back up on stage and continued the show as if nothing had happened! She later laughed the whole thing off on Twitter, so we're assuming the little incident didn't leave her too startled.