The rock band Mötley Crüe Tuesday announced its breakup and final tour, dramatically signing a legal document to that effect at a news conference in Hollywood.

"We're calling it a cessation of touring document, which is not a phrase that anybody's used before, because there's never been such a thing as far as I know," the band's attorney, Doug Mark, said. "It's an agreement that binds the four of them to not utilize the [Mötley Crüe] trademark" following the tour, which vocalist Vince Neil said "could last two years, maybe a little longer."

The tour, with opening guest Alice Cooper, is scheduled to play the Nikon at Jones Beach Theater on Aug. 29.

"We started talking about it a few years ago," said Neil, 52. "We don't wanna be one of those bands that maybe have one [original] guy left in it or somebody's brother or something like that. We wanted to go out with the four founding members of Mötley Crüe."

"We've always been very proactive about everything we do, including the end of our career," said bassist Nikki Sixx, 55.

Formed in 1981 in Los Angeles, Mötley Crüe has sold an estimated 100 million albums, beginning with the self-released "Too Fast for Love." The 1989 "Dr. Feelgood" reached No. 1 on the Billboard album chart. While never a critics' darling, the band through the years has received three Grammy nominations for best hard rock performance.

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The band members said they would remain in music, pursuing solo projects. "I've got some big surprises that I can't talk about at the moment," said drummer Tommy Lee, 51.

"We've been there, we've done that, we love each other like brothers and let's go out on top," said lead guitarist Mick Mars -- adding, "It's time for us to throw the towel in."