Baring it all is so last year. Demure is the mode du jour…a look the stars are achieving with flirty off-the-shoulder outfits.

"It's peekaboo sexy," designer Rebecca Beeson says of the trend. "And it doesn't matter what your age or weight is. Everyone's shoulders look great." Keep yourself covered at the office, Beeson suggests, by pushing a cowl-neck toward your back—then let the sweater slide off your shoulders when you hit the town.