FYI, showing off your undies is totally cool again, but we're not talking full on indecent exposure here. We're talking supermodel Joan Smalls totally working her chic high-waisted Versace undies as they peeked out of her jeans waistband at a Met Gala after party on Monday night. This cheeky look can be a tricky one to nail, so keep it simple à la Joan and pair your pants with a cropped pastel sweater, low-slung, vintage-wash denim, and a pair of fierce gold heels. BOSS.  

Try another Spring '14 trend and work a colorful art-pop skirt like Arlissa.