This Michael Jackson foto contains
fedora, vilten hoed, homburg, cowboyhoed, trilby, fedora met vilten hoed, stetson, porkpie, porkpie hat, porkpie hoed, schipper, leghorn, panama, hoed, zeeman, skimmer, strooien hoed, livorno, panama hoed, matroos, and stro hoed.
There might also be
merg hoed, merg helm, zon helm, tropenhelm, topi, merg hoed met merg helm, and topee.