Ozzy Osbourne has launched a Halloween contest aimed directly at his fans. In celebration of the 30th anniversaries of both ‘Diary of a Madman' and ‘Blizzard of Ozz,’ Ozzy challenges you to submit photos of yourself as Osbourne from one of the two album covers.

Here’s your chance to recreate the entire album cover scene. Dress up as the Prince of Darkness, be the Madman, whatever your trick -- be the best at it and you’ll have a chance to be a featured fan on Ozzy’s Facebook page. All you have to do is submit your photo dressed like the cover of ‘Blizzard of Ozz’ or ‘Diary of a Madman’ and you’ll have a chance to win.

You’ll find the official rules and gory details on his page including links to download the ‘Diary of a Madman’ masks (available for adults and children) if you wish. The mask isn’t required to enter, but may help you achieve your look faster. You can already view some of the entries and by the looks of it, many folks fail to follow directions, which may make your chances of winning all the better.

The contest started Friday (Oct. 7) and ends on Sunday, Oct. 30 at 11:59AM ET, so don’t hesitate. Get on that ‘Crazy Train,' put on your best Ozzy look and be the best MadFan -- it’s time to make Mr. Crowley proud. Halloween rocks and it's almost here!