Fan rushes Britney Spears onstage in Las Vegas

Britney Spears had a big scare on Wednesday night when an audience member rushed the stage at her Las Vegas show. The incident was caught on videos that circulated on social media.In a video, Spears does not notice at first that a man is getting slammed to the floor by security guards behind her on stage. When she realizes, the singer is visibly shaken as she turns and says into her microphone, "What's going on? ... Oh no!" to a guard. Then, Spears walks off stage with security.ET reports that p