15 Hot Hairstyles You Can Wear At Work

A center part, a la Olivia Palermo, makes a basic pony feel cool—and a tinge studious. For meetings when you need to look super-professional, this is your go-to.

Stick-straight hair, like Emmy Rossum's, is a fail-safe style, since it always looks 100 percent polished.

Get mileage out of yesterday's blowout by parting your hair on the opposite side (hello, instant volume!) and securing it with a bobby pin. The inspiration for this style? The gorgeous Ashley Greene.

Give yourself a raise—literally. If backcombing isn't enough to give you Maria Menounos' enviable bump, here's a way to cheat it: Pull the top half of your hair straight up over your head—as if you were creating a super-high half-pony—and secure the elastic halfway between your roots and your tips, so it's very loose. Then stuff the ends of your strands, along with the elastic, underneath the hair at the crown. Secure with a few bobby pins to create a modern-looking bouffant.

Jessica Alba's mega-part gives you a sexy swoop that's still classy enough for the weekly staff meeting. For maximum drama, use the outer corner of your eye as a guideline for where to part your hair.

For days when you don’t have time for a blow out, steal Katharine McPhee’s cool-girl style: Pin up the long layers in back, leaving the shorter ones to frame your face. The result? That faux bob effect.

The ends of a choppy fringe, like Reese Witherspoon's, act like arrows directing attention to your eyes. And since eye contact is so important in the work place, we thought this style was a no-brainer.

Revenge star Emily Van Camp's style holds best on unwashed hair, so it's a lifesaver for mornings when you're too tired to function, but still need to look half-alive in your cubicle. Just coil hair into a bun, secure with five or six bobby pins.

Model and Project Runway: All-Stars host, Angela Lindvall's soft, touchable 'do is pulled-together and professional—the ultimate day-to-date style.

Yes, you can wear braids to the office! To make them feel grown up, tease the front of your hair, a la Zoe Saldana, for a little added volume. Then, loosely gather your hair to one side, create a braid, and place it across the top of your head, securing it behind your opposite ear. A classic working-girl look.