Trendy formal hairstyles. Formal hairstyles for proms, weddings, homecoming and more. To create the perfect formal hairstyle there are many choices to chose from, from updos, short styles, curls, waves, braids, and sedu styles. You can add hair accessories such as flowers, jeweled pins, and pearls for extra special looks for formal hair events.Your earrings and jewelry can also be a simple way to add something special to your hair by brightening up your style.