Sports Illustrated is celebrating its 50th Swimsuit Issue this year, and they’ve lined up a trifecta of hotties on the cover. Nina Agdal, Lily Aldridge and John Legend’s wife Chrissy Teigen show off their petite behinds in bright bikini bottoms. As an added bonus, Kate Upton continues her reign as SI swimsuit cover girl on the flip side of the issue, which is more boobs than booty. The ogling doesn’t stop there, though; Chanel Iman, Skylar Diggins and Ariel Meredith are among the many beauties featured inside the issue. Oh, and Sports Illustrated also set up a simulated zero-gravity photo shoot with Ms. Upton, because they know exactly how the male brain works.

The 50th Anniversary Sports Illustrated Swimsuit Issue is on newsstands now.

Check out all the eye candy after the jump…

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