It's been nearly [article id="1601831"]three years in the making[/article], and during that time, it's been called a "no-concept" record, a [article id="1605259"]down-and-dirty punk album[/article], a [article id="1617488"]"love letter to rock and roll"[/article] and, most recently, a fast-and-loose [article id="1629836"]celebration of the Jersey Shore[/article] and "that era when heavy metal was yet to become hair rock."

But now we actually know what to call My Chemical Romance's fourth album: Danger Days: The True Lives of the Fabulous Killjoys.

That's according to MCR's label, Reprise Records, which confirmed the title to MTV News on Friday afternoon (September 17), putting to end a day of solid speculation that started when U.K. retailer HMV accidentally listed the album title and a tentative release date on its website (a posting that has since been corrected).

Reprise would not confirm whether Danger Days will be hitting stores November 22 -- or the 23rd here in the U.S. -- as the HMV site states, nor would Reprise confirm the title of the first single from the album. Several sites have reported that it will be called "Bulletproof Heart" and would head to radio September 28.

In recent days, MCR seem to have begun ramping up the promotion for, well, something, posting artwork supposedly intended to be the album cover -- and a mysterious "Transmissions" page -- on their website.

Danger Days: The True Lives of the Fabulous Killjoys is the follow-up to My Chem's ultra-ambitious 2006 effort The Black Parade and will re-team the band with [article id="1526008"]producer Rob Cavallo[/article] (who helmed the sessions for Parade too), according to Reprise. Initially, My Chem were working with producer Brendan O'Brien on the new album, but it's not clear whether any of those earlier songs will end up on Danger Days, and Reprise did not respond to MTV News' request for comment on that matter.

What do you think of MCR's new album title? Let us know in the comments!