You better make sure you’re not naughty…

EMINEM is to scribble illegal file-sharers off his Christmas list this year.

In an effort to clamp down on people downloading his album for free, the rapper is launching the Very Shady Xmas Contest, in which fans who buy his new release ’Encore’ will have the chance to make this year’s Shady Xmas List.

Those on the list will be eligible to receive one of 400 presents in Shady wrapping paper, including platinum plaques, Sirius satellite radio equipment and subscriptions, exclusive ’Encore’ shoes, video memorabilia, Shady Ltd. Merchandise and gift certificates, and the chance to work on Eminem’s next music video.

According to MTV News, fans will have to purchase a legal copy of the album, due out on November 15, and put in into their computers to access the registration site. They will be able to enter the competition up until December 24.

Longtime collaborator Dr Dre and [a][/a] both appear on ’Encore’.