Star Fashion

RED CARPET Blair looked perfectly sophisticated at the NBC upfronts in the two-piece ensemble worn with a disheveled updo and straight-from-the-runway sandals.
RUNWAY Peekaboo! Erin Heatherton flashed some stomach in the catwalk version of the body-conscious design.
REAL WAY
Marc Jacobs sheer panel sweater, $468.75; at net-a-porter.com.
Marc Jacobs flannel skirt, $980; at eluxury.com.
ANOTHER WAY
Twelfth St. by Cynthia Vincent mesh gray tank, $129; at bluefly.com.
McQ by Alexander McQueen wool pencil skirt, $255; at shopjake.com.