The 15 Sexiest Sports Illustrated Swimsuit Issue Covers of All Time

In 1981, Christie Brinkley shot her third and final cover for the Swimsuit Edition. Fun fact: the one-piece suit she's wearing cost a relatively modest $58 at the time.

PHOTOS: The Age-Defying Christie Brinkley

Kate Upton made a big splash (pun fully intended) when she showed up out of nowhere on this 2012 cover of the magazine, in what is literally the smallest cut of fabric that could ever be legitimately ordained a bikini.

PHOTOS: Kate Upton Through The Years