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Prepare for some strange and heavy rock music: Iggy Pop and Josh Homme will release a collaborative album in March, according to a report from The New York Times. Pop and Homme recorded Post Pop Depression in secrecy but that’s about to change — the two rockers and their band will make their debut on The Late Show With Stephen Colbert Thursday night.

Post Pop Depression originated when Pop texted Homme suggesting they record together sometime. Homme initially hesitated — he said that Pop’s albums The Idiot and Lust For Life contributed to him quitting his ’90s stoner-rock group Kyuss — but eventually came around after three months.

Homme, who is also a member of Queens of the Stone Age and Eagles of Death Metal, says recording with Pop “saved” him in the wake of the November terror attacks in Paris that included an Eagles of Death Metal concert at Le Bataclan.

“We paid for whatever ourselves,” Pop told the Times. “But it was made to be heard — not to be some quirky thing that we did with our own money, ha-ha.” He said that he “had a kind of character in mind” when working on the album who was “sort of a cross between myself and a military veteran,” and that the lyrics explore “what happens when you’re finally useless to everyone except hopefully not yourself.”

According to the Times, Dean Fertita (Queens of the Stone Age, The Dead Weather), Troy Van Leeuwen (Queens of the Stone Age), Matt Sweeney (Chavez), and Matt Helders (Arctic Monkeys, a band Homme has produced) contributed to the Post Pop Depression sessions. Homme previously collaborated with another legendary rocker from an earlier era when he teamed with Led Zeppelin’s John Paul Jones (and Dave Grohl) to perform as Them Crooked Vultures in 2009.

But don’t necessarily plan on seeing the group live. “There won’t be hardly any shows, and they won’t be in big places, and you won’t be able to get a ticket,” Homme said. “So almost everyone won’t see it. It will be like trying to catch smoke in your hands. And that makes it even better. It will be special, and it will be over in the blink of an eye.”

For the complete story about Homme and Pop’s collaboration, head over to The New York Times.