*A black surgical mask that Michael Jackson is said to have worn the night before he died is now on an auction block with bids already surpassing $220,000.

According to Nate D. Sanders Auctions, which is handling the sale, Jackson wore the mask (pictured above) on June 24, 2009 while rehearsing for his planned “This Is It” tour. It would be his last ever rehearsal.

The auction house claims the mask, made of silk fabric and personally designed by the King of Pop, contains visible traces of MJ’s stage make-up along with a strand of his black hair.

One of MJ’s former bodyguards was in possession of the mask, and swears by its authenticity.