Listen to Knife Party & Tom Morello's 'Battle Sirens' Collab Now

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Tom Morello perform onstage at MusiCares Person Of The Year Honoring Bruce Springsteen at Los Angeles Convention Center.

Rumor has it Knife Party is about to drop its Tom Morello collaboration Friday, Sept. 9. The electronic-duo shared a short clip via Twitter that shows a cartoon guitar man readying his axe hand in true Morello fashion.

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The song, titled “Battle Sirens,” debuted live at Ultra Miami in March during the Pendulum / Knife Party main stage closing set. The Rage Against the Machine guitarist joined the band and later confirmed the song's title, as well as it's link to his new project Atlas Underground.

“‘Battle Sirens' is the cross genre hard guitar/hard EDM mash up I've been waiting to hear for years," Morello says in a released statement. "The devastating grooves, monster drops and insane tension that are a hallmark of both Knife Party and RATM are elevated to a crazy level with this jam."

“Tom hit us up when we were in the studio saying he'd always loved the idea of merging his guitar riffs into the electronic world and we bounced some ideas back and forth until we had the final version," Knife Party continues. "Performing this track live as a surprise during our Ultra set was insane."

Hear Knife Party and Morello perform “Battle Sirens” at Ultra below.