Britney was rushed to the hospital and underwent arthroscopic surgery after injuring her knee while filming her latest music video, 'Outrageous,' the official song from the 'Catwoman' movie. Britney was shooting a dance routine when her knee gave out and she went crashing to the ground. After reportedly telling those around her she couldn't get up, her bodyguard carried her to a waiting car. Britney's spokesperson confirmed that Britney was hurt, saying the surgery was needed after an MRI showed she had 'floating cartilage.' Britney is in the middle of a concert tour and it's unclear how the injury will affect her ability to be on the road.

Damn that sucks. Hope she's okay. :-/