Iggy Pop and Josh Homme (of Queens of the Stone Age and Eagles of Death Metal) have secretly teamed up for a new album named Post Pop Depression, performing a first track — "Gardenia" — on The Late Show with Stephen Colbert last night. The pair revealed in The New York Times on Thursday that they'd been working on the project since last January, funding the album themselves to ensure secrecy and independence. "We paid for whatever ourselves,” Pop told The New York Times. “But it was made to be heard — not to be some quirky thing that we did with our own money.”

Pop "proposed" to Homme by text

The nine-track album is set to be released March 18th and will also feature contributions from Queens of the Stone Age's Dean Fertita and Matt Helders of the Arctic Monkeys. Speaking toThe New York Times, Pop said the album's theme was "what happens after your years of service? And where is the honor?" Pop and Homme also chatted with Colbert last night, with Pop saying the project began when he "proposed to [Homme] by text from my flip phone," sharing ideas and poetry to get things started. Incidentally, Pop mentions that he uses a "Rugby" flip phone — presumably this one from Samsung?