Mötley Crüe is hanging it up after three hard-rocking decades. They’re going to play a farewell tour first, though — 70 shows, with tickets going on sale Friday, starting at $15. Alice Cooper has been slated as the group’s opening act. And when they say final, they mean it: The band even signed a legal contract stating that they’re breaking up, and the last tour is exactly that, the group said during a press conference Tuesday in Hollywood.