This Michael Jackson foto contains
filzhut, homburg, stetson, trilby, fedora, and stetson trilby.
There might also be
biber, rizinus, rolle, castor, boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, panama-hut, kampagne hut, and kampagnenhut.