Rage Against the Machine bassist Tim Commerford has formed the new power trio Wakrat, who are working on their debut album. The punk and hardcore-influenced band has released the video for the song "Knucklehead" that you can watch above.

In addition to Commerford, who sings and plays bass, the group includes drummer Mathias Wakrat and guitarist Laurent Grangeon. As to how the band came together, Commerford tells Rolling Stone that he met Mathias Wakrat through his RATM bandmate Zack de la Rocha, a frequent diner at Wakrat's L.A. restaurant.

"We both just share the same enthusiasm for riding mountain bikes," Commerford says. "We'd talk for many hours about mountain biking and one day, he was like, 'Oh, yeah, I play drums.'"

Commerford reveals that writing the song "Knucklehead" was very cathartic: "I've been dealing with some very deep, dark family stuff in the last year, stuff that left me in tears. I spent a lot of time crying in the last year and feeling trapped and alone. That's what 'Knucklehead' is about. Sometimes the dark side spawns incredible things, and the music came from that."

Commerford continues, "It's the ray of sun at the end of the day. I went through some deep s--t that I hope I never go through again, but look what came from it: this incredible opportunity in music that I love. The scream at the end of the song makes me feel like I'm just putting my face in a pillow and screaming my guts out."

Wakrat played their first show earlier this month at L.A.'s Viper Room, with de la Rocha and Tom Morello there for support along with Chris Cornell. They opened for Royal Blood last night (Sept. 24) in Santa Ana, Calif.

Earlier this year Commerford revealed he was in the experimental band Future User, who released the album #SteroidsorHeroin in February.

Rage Against the Machine haven't released a new album in a long time, but they do have the DVD Live at Finsbury Park coming out Oct. 16. The show was filmed in 2010 at London's iconic Finsbury Park venue.

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