This Bruno Mars wallpaper contains
fedora, felt hat, homburg, stetson, trilby, porkpie, porkpie hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, and beaver.
There might also be
pith hat, pith helmet, sun helmet, topee, topi, green beret, special forces, elite soldier, and regimentals.