This Michael Jackson foto contains
fedora, cappello di feltro, homburg, stetson, and stetson trilby.
There might also be
paglietta, livorno, panama, cappello panama, marinaio, skimmer, il cappello di paglia, cappello di paglia, cappello campagna, cappellone, beaver, di ricino, castoro, and castor.
This is not MJ's version but più o less it will be like this. MJ helped write "Behind the Mask", it was supposed to be on either "Off The Wall" o "Thriller", according to the rumors. Instead, it was dato to Greg Philinganes, who sung it in 1984.