This Michael Jackson photo contains
fedora, felt hat, homburg, stetson, trilby, well dressed person, suit, pants suit, pantsuit, boater, leghorn, panama, panama hat, sailor, skimmer, and straw hat.
There might also be
drawing room, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, outerwear, and overclothes.