BMML

This Bruno Mars photo 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 pith hat, pith helmet, sun helmet, topee, topi, porkpie, porkpie hat, and campaign hat.