The Spring Breakers actress looked a million dollars in a dazzling bejewelled dress by Dolce & Gabbana, featuring a luxe lace overlay and thigh-skimming hemline.
She accessorised her tanned legs with simple black heels by Casadei, while her swoon-worthy tumbling locks screamed high-glamour.
And she even worked her magic in the beauty department too, showcasing smouldering smoky eyes, glossy rouge lips and a hint of pink blush on the apples of her cheeks.
So how does she maintain her flawless complexion and super-toned figure, we wonder?
A few hours before the do, Selena posted this snap along with the caption: "Eating KFC getting ready for the ESPYs tonight! Ready to chat @iTunesMusic?? #AskSelena".
Feasting on KFC? We didn't see that one coming!
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Watch Selena's fab music video for 'Come & Get It':