The Brit model drew gasps when she stepped out in this ever so pretty floor length Maison Valentino gown at the BVLGARI & ROME Eternal Inspiration opening night in New York - and we can't tear our eyes away from it!
Complete with embroidered flowers and cutesy butterflies adorning the sheer sleeves, bodice and floaty hemline, Alexa looked as though she had hailed straight from a book of fairytales!
She didn't stop there though, popping on a pair of gem-drop earrings and jazzing up her brunette tresses with a matching, 1920's style hair clip which she wore to the side. Absolutely gorgeous!
Alexa schmoozed with the likes of Liv Tyler who looked equally as glamorous at the event in The Big Apple before taking to Instagram to share a snap of the oh-so-dreamy, chiffon dress with her 1.9m followers.
She rather hilariously captioned the pic which racked up over 53K likes: "Dress by @maisonvalentino. P.S. I walked around the halls of my apt building pretending to be a ghost for a good 15 minutes before I left which was as creepy as it was under appreciated."
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