The Spring Breakers star cut an elegant figure as she hosted the New York bash, which helped to raise funds for The Breast Cancer Research Foundation.
Her black maxi frock was a vintage number featuring a sweetheart neckline and figure-hugging silhouette.
She gave a nod to the pink theme with fuchsia courts by Alice + Olivia, paired with a glitzy deep raspberry clutch by Edie Parker.
But despite her glamorous get-up she still maintained her boho edge, accessorising with chunky silver jewellery and her new ombre hairdo.
And she hit the mark with her beauty look too, emphasising her chocolate peepers with black liner and false lashes. She added natural rosy lipgloss and gleaming peach cheeks, painting her talons a classic ruby red.
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