Blink 182 -- Fan Plummets from Balcony During L.A. Show

A fan and close friend of Blink 182 was rushed to an L.A. hospital last night during the band's sold-out concert at the Hollywood Palladium -- after falling from a 2nd-story balcony inside the building, Blink's rep tells TMZ.

Witnesses described the mayhem on Twitter, saying the fan fell "face first" while Blink was playing "Dammit" and looked in rough shape after the accident. The fall was roughly 15-20 feet, but witnesses say he was responsive.

One witness who was standing under the balcony tells TMZ, the man landed right next to her and his body made the "gnarliest splat on the ground ... I can still hear the sound. It was awful." He didn't land on anyone. The witness says he had blood all over his face.

According to the rep, the fan is a "dear friend" of the band, but the rep wouldn't be more specific.

It's unclear how the fan fell, and whether his injuries are life-threatening. He's currently being treated at a local hospital. The rep says the band is in touch with the man's family.