"David Lee Roth has cancelled the rest of his US tour after injuring himself performing "a very fast, complicated 15th-century samurai move" during a recent performance.

The former Van Halen frontman, who is known for his athleticism, was performing a gig in Philadelphia when he cracked his face with a long piece of wood."

I hope somebody taped this.

Ananova: Ex-Van Halen frontman knocks himself out of tour