Ozzy Osbourne has launched a Halloween for his fans on his Facebook page. In celebration of the 30th anniversaries of both ‘Diary of a Madman’ and ‘Blizzard of Ozz,’ Ozzy has challenged you to submit photos of yourself as Osbourne from one of the two album covers.

Don’t be afraid to go all out and recreate the entire cover scene! Send us your photos dressed as the Prince of Darkness in the setting of the Blizzard Of Ozz or Diary of a Madman covers and have a chance to be a featured fan on Ozzy’s page.

You’ll find the official rules and gory details on his page including links to download the ‘Diary of a Madman’ masks (for adults and children) if you wish. The mask isn’t required to enter, but may help you achieve your look faster. You can view some of the entries now on his page.

The contest started Friday (Oct. 7) and ends on Sunday, Oct. 30 at 11:59AM ET