Two of rock music's biggest names, Josh Homme and Iggy Pop, have made an album together.
The pair revealed they worked secretly on Post Pop Depression at two recording studios, one in the California desert.
"I proposed to him by text from my flip phone," 68-year-old Iggy Pop said about how he started working with Homme.
The duo performed the first track on the record, Gardenia, on the Late Show with Stephen Colbert on US television network CBS.
Iggy Pop was a leading figure in the 1970s American punk movement and became a rock icon with the classic album Lust for Life.
He's famous for his bare-chested and sweaty live performances at venues and festivals around the world.
Josh Homme is famed for his hard guitar playing with Queens of the Stone Age.
He's also co-founder of Eagles of Death Metal, although he was not on stage when the band's show was attacked in Paris by Islamist extremists in November.
Homme, 42, told The New York Times, external that he used the project with Iggy Pop to focus his mind after the tragedy.
"The fact that I had this to work on, it saved me," he told the newspaper.
He added that the collaboration was an especially introspective album for Iggy Pop.
"This is a much deserved victory lap for a man who's not sure if he won," Homme said.
Iggy Pop said that the album's theme was: "What happens after your years of service? And where is the honour?"
The new album was announced days after the death of music legend David Bowie, a close friend of Iggy who worked with him on some of his best-known music, including Lust for Life.
Post Pop Depression will be released on 18 March.
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