This Michael Jackson fan art contains
fedora, felt hat, homburg, stetson, trilby, boater, leghorn, panama, panama hat, sailor, skimmer, straw hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, and beaver.
There might also be
sign, poster, text, chalkboard, porkpie, porkpie hat, well dressed person, suit, pants suit, and pantsuit.