Guess The Sexy Star In This White-Hot Sandy Snap!

Oh snap!!! Can you guess which Hollywood hottie put her summer bod on full display in this eye-popping pic?!

She's been livin' it up in Hawaii and this is just one of many lucky shots she dispersed to her 2+million Instagram followers ... The 29-year-old is no stranger to the 'Vogue' world, and when she's not turnin' up the temps with steamy shots, she's probz hangin' with her man Finneas.