The music video for "St. Anger," the lead single from the album of the same name, found Metallica stepping out of their comfort zones. Teaming up with directors Emmett and Brendan Malloy, the band decided to film their performance of the crushing song at San Quentin State Prison in California.

Watch Metallica's Official Music Video For "St. Anger"

Hundreds of San Quentin inmates got to watch Metallica perform "St. Anger"; the video debuted on May 27, 2003, less than a week before the release of the album. In addition to performing the song for the filming of the video, Metallica also played a special mini-concert for the inmates.

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"St. Anger" is the first Metallica music video to feature bassist Robert Trujillo. Even though Trujillo didn't play on the studio album, he joined Metallica right before filming began for the video, thus his inclusion as a member of the band. The Malloys' music video was nominated for Best Rock Video at the 2003 MTV Video Music Awards.

Watch Metallica Perform "St. Anger" Live in Manchester

10 Things We Learned About Metallica from 'Some Kind of Monster'

Metallica: Some Kind of Monster made its debut Jan. 24, 2004, at the Sundance Film Festival. Today, it holds an impressive 89 percent rating with critics 83 percent rating with fans on Rotten Tomatoes. The documentary puts Metallica in a never-before-seen light as the band members opened themselves up in incredibly vulnerable ways. With each viewing, there are still new things fans—hardcore and new fans alike—can learn about one of the biggest bands in the history of rock 'n' roll.

Some of Our Favorite Live Photos of Robert Trujillo

If you've ever seen Metallica live in the last 20 years, you know how much of a monster Robert Trujillo is onstage. From his signature helicopter spin to his barking vocals, Trujillo is a musician few can imitate. We could share thousands of photos of Trujillo doing what he does best, but we decided to trim it down to just a few of our favorites.

Sometimes in rock bands, you'll find the bassist is more subdued or prefers to stay away from the spotlight. With Trujillo, he commands the attention of the crowd—and often, the attention of his bandmates—and Metallica's live shows are better because of it.

Check out some of our favorite live shots of Trujillo below, going all the way back to when he first joined the band in 2003.

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