The mother of tragic former Alice In Chains frontman Layne Staley has filed a lawsuit against the surviving members of the band.

Nancy MCCallum claims the rockers have been trying to stop her from collecting royalties on songs Staley wrote or co-wrote, even though she is allegedly entitled to 16 per cent of the group's income.

And earlier this month (May13) she filed legal papers at the King County Superior Court in Seattle, Washington seeking damages and a court order re-establishing her rights to her son's assets, according to local publication

The Man in the Box hitmaker passed away in 2002 from a deadly combination of heroin and cocaine.