The jacket -- which MJ personally autographed to his former costume designers -- is expected to fetch between $200k and $400k ... though we wouldn't be shocked if it soared past half a mil.
The jacket is one of several MJ items featured in the Julien's Auction event on June 25 and 26. Among the more interesting pieces -- the wig Michael wore at his "This Is It" news conference in London and a glove he wore at the American Music Awards.
The wig is expected to haul in between $4,000 and $6,000 -- and the glove is valued between $20k and $30k.
