Zara, who appeared in the most recent series of Love Island, arrived at the glitzy bash at London's Juju Chelsea wearing a show-stopping orange playsuit from her collection with MIAAN.
The former Miss Great Britain teamed her summery all-in-one with a pair of strappy gold sandals and a bouncy blow-dry, topping off her red carpet look with smoky eyes and a winning smile for the cameras.
Last week, Zara lifted the lid on her collaboration with style-hub MIAAN, which is a celeb favourite.
Zara already owns Mimi boutique with her mum in Hessle, Yorkshire, but this is the first time she has launched her very own clothing collection.
Ahead of her big event tonight, Zara told her Instagram followers: "Nearly time for my fashion launch @jujuchelsea, so excited to see everyone... Thanks for all your support @officialmiiaan."
She also told her Twitter fans that she was feeling "nervous" about her launch party, but she has no need to - that playsuit alone is enough to sell her entire collection!