This Michael Jackson fan art contains
a fedora or felt hat or homburg or stetson or trilby, a boater or leghorn or panama or panama hat or sailor or skimmer or straw hat, and a porkpie or porkpie hat.
There might also be
a beaver or castor, a dress hat or high hat or opera hat or silk hat or stovepipe or top hat or topper or beaver, and a campaign hat.