You can credit Christian Dior with the modern pencil skirt: he designed the "H" skirt in the 1940s, and it came to represent prim and proper office wear for women. By what we've seen in street style and on the Spring 2013 runways, the pencil skirt has evolved in the coolest way, and the new way to wear it is a far cry from the elegant but buttoned-up look we always imagine. It's much sportier, and you could play with proportions with a slouchy sweatshirt or make it sexy with a fitted tank. We're huge fans of Derek Lam's pencil-and-pullover look, because the slouchiness downplays the sexiness of a pencil (and we really love not having to suck in, you know?). However, for an evening look, and if you have an embellished skirt that has a bit more volume, a sexy tank à la Altuzarra looks pretty incredible. Just keep everything else ultrasimple — hair in a ponytail, minimal makeup. It's also best to keep the tank in a neutral tone, and go for a classic ribbed style if you really want to emulate the feel of the Altuzarra look. We did some searching for pencil skirt looks to try out now, so get clicking.