Heavy rock band Motley Crue, which will perform 72 concerts in the United States and Canada before calling it quits, told CTV’s Canada AM they have no intention of reuniting after 2015.

The hair metal quartet signed a legal agreement in which case any member can sue or prevent other members from coming back for another Motley Crue tour.

“There’s no loop holes, there’s no gray area,” lead singer Vince Neil told CTV’s Canada AM on Thursday. “When it’s done, it’s done.”

Bassist Nikki Sixx said it was important for the band to sign the contract to make the decision a permanent one.

“So many bands that have come before us and have done farewell tours -- they keep coming back and coming back,” Sixx told Canada AM. The bassist said he wanted to leave the stage while the band was “still on top.”

Motley Crue, which became popular in the 1980s during the MTV generation, announced its decision to retire at a news conference on Tuesday in Hollywood.

Alice Cooper -- the band's “spiritual adviser” -- will join the group during its last farewell tour, with the first concert slated for July 2 in Grand Rapids, Michigan. The band will then head north to perform in Canadian cities including Toronto, Calgary, Edmonton and Vancouver.

The band, which has sold more than 80 million albums, was formed in 1981 by Neil, Sixx, drummer Tommy Lee and Guitarist Mick Mars.

Neil left the band in 1992, but rejoined the group in 1997. Lee also left in 1999 but returned to announce a reunion tour in 2004.