We love the striking appearance of this dress, not to mention the luxe-looking silky material.
She wasn't the only star to opt for Twinset tonight, as Emily Ratajkowski also stepped out in a dress by the in-the-know label.
With creations like this, we can see why the brand have been a popular choice!
If you want to pick a peplum for your next special occasion like Hailey, then head to the edit below to get the look!
The beauty finished off the stunning look with pair of statement fan earrings and a matching cuff.