Demonstrating an appetite for litigation, former Guns N' Roses singer Axl Rose is suing video game maker Activision Blizzard for $20 million, alleging fraud and breach of contract relating to the company's popular Guitar Hero III game, Radar Online reported Tuesday.

Rose has also claimed unjust enrichment, saying that he is the majority owner of the trademarks and licensing associated with his former heavy metal band.

Rose said Guitar Hero III uses several Guns N' Roses hits in the game, including "Welcome to the Jungle," without his permission.

While there was an agreement for the song, Rose said: "Activision breached the contract when it released GH III which prominently features Slash imagery in direct connection with the use of 'Welcome to the Jungle,' exploits the prior association between [former band member] Slash and Guns N' Roses, promotes Slash's and VR's [the band Velvet Revolver] separate interests and includes VR tracks as available downloads, all of which was and is directly contrary to the contractual obligations of Defendants," according to legal documents seen by Radar.

Read more: http://www.radaronline.com/exclusives/2010/11/exclusive-court-documents-axl-rose-suing-guitar-hero-makers