NBC hosted a star-studded event celebrating the 50th anniversary of the Sports Illustrated Swimsuit Issue Monday (Feb. 3). Models past and present were on hand, including Kathy Ireland, Rachel Hunter, Kate Upton, Tyra Banks, Christie Brinkley and Katherine Webb.

Featuring performances by Lady Antebellum, Steven Tyler and Tim McGraw, it was a rip-roaring good time. Check out these behind-the-scenes videos, plus all the red carpet beauty in our photo gallery.

As Heidi Klum says in the above video, “Take a look at the breast-taking … I mean, breath-taking locations.”

We also have a look back at 50 years of SI Swimsuit covers here.