When Motley Crue retired as a band before setting out on their final tour, they signed contracts that said that they were finished as a band. However, they left the door open for new music if the time was right, although they would never tour together again.
It didn't take long for the new music to come. Vince Neil took to Twitter and announced that Motley Crue will be getting back together in the studio to record four brand-new Motley Crue songs. This clears up all the mystery that arose when Tommy Lee and Nikki Sixx were spotted with producer Bob Rock at a studio. Lee even revealed at the time it was new music he was playing.
There was no word at the time on what this music is for, as the band is still rumored to be finished. However, when someone asked Nikki Sixx on Twitter what was going on, and asked if this was for a movie soundtrack, Sixx said that it was for the Motley Crue biopic The Dirt.
The Dirt tells the history of Motley Crue, from their start as a Sunset Strip metal band that was considered too loud for radio to one of the few '80s bands that could still sell out arenas three decades later. The movie is based on the book of the same name, which had its own soundtrack in the final Motley Crue album Saints of Los Angeles.