While fans may argue whether the Beastie Boys are more hip-hop or rock, one thing that's unanimous: They never sold out. And if the late Adam 'MCA' Yauch's will is followed, they never will. The 'Fight for Your Right' rapper's last will and testament bans his music from being used in ads.

Yauch's will was filed in a Manhattan court this week, and it specifically stipulates, “In no event may my image or name or any music or any artistic property created by me be used for advertising purposes." Entertainment Weekly's Music Mix reports that it's unclear whether the clause applies to all of the Beastie Boys' music or just MCA's own. Yauch passed away in May following a long battle with cancer.

The filing is a timely one, as the group (Adam 'Ad Rock' Horovitz and Michael 'Mike D.' Diamond) and Yauch's estate are suing the Monster Energy Drink Corporation for copyright infringement.

Monster reportedly used four Beastie Boys' tracks without permission: 'Sabotage,' 'Looking Down the Barrel of a Gun,' 'So Whatcha Want' and 'Make Some Noise.' The songs, as well as video footage of the legendary hip-hop trio, were used in a video montage for the brand's 'Ruckus in the Rockies' event in Canada this past May. The suit (via Zap2It) claims that Monster "conveyed to consumers the impression that Beastie Boys permitted the use of their name and intellectual property, and participated in connection with Monster's promotion of its products and events."

According to the suit, Monster is also accused of releasing an MP3 medley of over a dozen Beastie Boys songs, once more released without permission from the band. The Beastie Boys are requesting that all video and audio footage be removed from the Internet, as well as for unspecified damages.

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