London on Wednesday evening. The American model, 29, showcased her washboard abs in a chic broderie anglaise co-ord, which included a crop top and A-line skirt.
The former pageant star wore her brunette locks swept back in a sleek bun and sported a glamorous coat of make-up in bronze hues.
Olivia flaunted her toned pins in the thigh-grazing skirt and elongated her toned pins in a pair of stylish strappy white heels.
She was joined at the soiree by Swedish model Elsa Hosk, 33, who showcased her sizzling figure in a black form-fitting midi dress.
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