The socialite proved her impressive style credentials by managing to make a casual flannel shirt look totally glamorous.
She left her blue checked number unbuttoned, strategically revealing a hint of her burgundy cami underneath.
The starlet then tucked her boyish top into a chic black midi skirt which featured an asymmetric fringed hem.
A chunky leather belt topped off her look, while her red satin heels added a racy Victoria's Secret edge.
Olivia arrived at the Lexington Avenue Armory in New York for the event alongside handsome model boyfriend Johannes Huebl.
The couple looked beyond gorgeous as they posed on the pink carpet, before heading to their seats to watch the famous lingerie show.
Cara Delevingne, Alessandra Ambrosio and Lily Aldridge were amongst the supermodels donning their angel wings and strutting down the glitter-filled catwalk.
Attendees were also treated to a performance by Taylor Swift, who pulled out all the stops in a Union Jack minidress and matching top hat. Cute!
What do you think of Olivia's outfit? Let us know by commenting below as the best comment across the site each week wins £50!
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