Sports Illustrated Celebrates 50 Years of Swim With Many, Many Models

at 12:00 pm | By

Kate Upton Poses Nude
Kate Upton bares all in 'Contributor' magazine.
It was models galore last night at the Sports Illustrated 50 Years of Swim celebration in Manhattan. Cover girls Chrissy Teigen, Lily Aldridge and Nina Agdal rubbed elbows with former SI cover models, including Christie Brinkley, Rachel Hunter, Carol Alt and a newly redhead Molly Sims.

Noticeably absent from the swimsuit soirée was Kate Upton, and her gravity-defying breasts.

The 21-year old, who graced SI‘s swimsuit edition cover last year, may have been spending time with her on-again boyfriend, baseball player Justin Verlander. The Detroit Tigers pitcher told USA Today when asked about his relationship with Upton, “It is hard to be private, especially with her. But you know, I’m in a great spot and just looking to get ready for the season.”

To see all the red carpet photos from last night’s party, launch the gallery and check out this video from Kate’s zero gravity shoot for the magazine.