RED LIGHT DISTRICT: The Kardashian clan’s younger generation — Kendall and Kylie Jenner — will help to keep the flashbulbs popping at The Red Dress Collection fashion show Feb. 6 at the Hammerstein Ballroom. Olympic gymnast Gabby Douglas, “The Today Show’s” Savannah Guthrie and musician Toni Braxton will also be among the 20-plus celebrity models wearing red dresses at the annual Heart Truth event, which will be livestreamed the night of the show at 7 p.m. on The Heart Truth’s Facebook page. Newbies can’t count on any backstage bubbly to calm their nerves, with Diet Coke being the presenting sponsor. The most unlikely newcomer is the “Fashion Police’s” Kelly Osbourne, who will be putting herself out there — on the red carpet and the runway.

Nonmodels of all types are encouraged to help raise awareness about heart disease on Feb. 1, National Wear Red Day.