Though the iconic French company is marking its 70th anniversary this spring, Longchamp had even more to celebrate last night with the opening of their flagship store on Fifth Avenue and the reveal of new brand ambassador Kendall Jenner.

Co-hosted by Longchamp's Cassegrain family alongside the leggy It Girl, the star-studded bash saw the space transformed into Café de Longchamp, welcoming the likes of Cara Delevingne, Paris Jackson, Scott Eastwood, and Jeremy Scott.

Before Kendall's grand entrance, guests roamed around the new two story store (which happens to be Longchamp's largest location in the U.S.) and posed for gorgeous live portraits.

The Les Twins, who you may have seen at Coachella dancing behind Queen Bey, DJ'ed and mingled with friends as the night went on. Kendall turned heads in a chic printed gown, greeting attendees but mostly sharing laughs with her fellow fashionistas.

The store is open to the public and is launching their newest collaboration with Shayne Oliver. Click through for an inside look!

[Photos by Neil Rasmus/]