Melissa Victor, 33
Vice president, Media & Artist Relations, Island Def Jam Music (Justin Bieber is among her clients)
Office essentials: Sky-high heels, blazers, and jeans.
Style principles: My day's schedule—whether it's at the office, on the red carpet, or at a photo or video shoot—dictates how I'm dressed. If it's going to be a long day on set, I tend to be casual-chic. But if I'm going to be on the red carpet, I wear heels, because I'm vertically challenged. In the immortal words of Coco Chanel, "A girl should be two things: classy and fabulous." Feeling fabulous is always a confidence booster.
Orange top, $595, Yigal Azrouël; saksfifthavenue.com. Blue top, $78, Ralph Lauren Blue Label; ralphlauren.com. Skirt, $735, Stella McCartney; (212) 255-1556. Watch, $2,550, Hermès; hermes.com for stores. Earrings & ring, Victor's own.