When you think of a muumuu, you probably think of a heavy cotton dress with puffy sleeves and a shapeless tunic that falls to the floor, maybe with a ruffle around the bottom. You probably think of Hawaii and big, colorful floral prints. And you definitely think of your grandmother. Am I right? Well, Deb Mascia is here to show how wrong we both are. Because I’m pretty sure Cameron Diaz, Cate Blanchett, Michelle Obama and Susan Sarandon wouldn’t be caught dead wearing their grandmother’s muumuu.