Juliette Lewis Turns Fighter

Juliette Lewis will show off her martial arts skills in her next music video after becoming a "bad a**" while training with Muay Thai fighter Roxy Richardson.

The actress-turned-punk rocker has posted a behind-the-scenes shot of herself in fight gear with a fake bloody nose on her Twitter.com blog following the shoot for Terra Incognita in Los Angeles on Saturday, and the Natural Born Killer star's brutal new look is all down to Richardson.

In the accompanying caption, Lewis writes, "Roxy is an amazing Muay Thai fighter/trainer who made me look like a bad a** in this vid were (sic) shooting for my song 'Terra Incognita'. Fun day!"