Hailey Baldwin & The Hadid Sisters Are Harper's Bazaar's ICONS

Hailey Baldwin shows off a little leg in a gorgeous white gown at the Harper’s BAZAAR ICONS event held at The Plaza Hotel on Wednesday night (September 16) in New York City.

The 18-year-old model hit the black carpet with sisters Gigi and Bella Hadid, plus Arrow actress Katie Cassidy.

PHOTOS: Check out the latest pics of Bella Hadid

Gigi was seen walking in the Anna Sui Runway Spring 2016 show during New York Fashion Week: The Shows held at The Arc, Skylight at Moynihan Station earlier in the day.

FYI: Bella is wearing a Givenchy gown. Hailey is wearing a Gabriela Cadena dress. Gigi is wearing a Balmain x H&M dress.

20+ pictures inside of Hailey Baldwin, Bella and Gigi Hadidand Katie Cassidy…