Mötley Crüe, Asking Alexandria, Ice Nine Kills and From Ashes to New have teamed up on a new song for the soundtrack to the upcoming thriller film The Retaliators.

The track, titled "The Retaliators Theme Song (21 Bullets)," was co-written by Mötley's Nikki Sixx and his Sixx:A.M. bandmate James Michael. It marks the first new music from the "Dr. Feelgood" rockers to follow the 2019 soundtrack to The Dirt, which featured four new Crüe recordings, including the Machine Gun Kelly collaboration "The Dirt (Est. 1981)."

"Writing a new theme song for a horror flick was inspiring," Sixx says. "This was my first time writing for a horror-thriller film, and it took me in a different direction from the first theme song I wrote -- 'The Dirt (1981)' by Mötley Crüe."

"I worked with some great new artists to create a new sound that will stretch Mötley Crüe's audience to new fans," the bassist adds. "I had a great time writing it, and I think our fans will love it, too!"

You can listen to "21 Bullets" now via digital outlets and watch its accompanying video streaming now on YouTube.

The Retaliators will be released September 14, and its soundtrack, which also includes contributions from Papa Roach, Five Finger Death Punch, The Hu and Band Wolves, drops September 16.

Mötley's Tommy Lee, Papa Roach's Jacoby Shaddix and members of FFDP have roles in the film, as well.

Meanwhile, you can catch Mötley Crüe on their ongoing Stadium Tour with Def Leppard, Poison and Joan Jett & the Blackhearts, which continues Friday in Boston.

(Video contains uncensored profanity)

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