Photos: Must See: Sports Illustrated Swimsuit Stunners: Then and Now

Christie Brinkley: One word: Wow! Thirty five years after sexing it up for SI in a sequined, one-piece, V-neck swimsuit in the Seychelles, Brinkley, 59, was back in a daring V-neck mini dress that showed her best assets haven't changed at all. In fact, her hair looks fuller, her legs look leaner, and her smile might even be a little sweeter than before.

Kathy Ireland: It's no wonder Ireland was a member of SI's Dream Team, which consisted of Ireland, Elle MacPherson, and Rachel Hunter back in 1994! The 50-year-old beauty, who also appeared solo on the cover of the 1992 edition and graced the cover of the 25th anniversary issue, was perfection in a jewel-toned gown. It's safe to say, she's still got the goods.

Tyra Banks: Seventeen years after her swimsuit cover, the "America's Next Top Model" host is still hot as ever! Banks, 40, hit the red carpet in a lingerie-style dress, which accentuated her fit figure.

Rachel Hunter: The New Zealand model, 44, is also a member of the SI Dream Team. Similar to her 1993 shoot, the gorgeous gal remains fan of daring cutouts. She pushed the boundaries on Tuesday night with a peek-a-boo neckline gown, which featured a booty-baring slit.

Petra Nemcova: The 34-year-old head turner is still sporting a stellar tan and playing with color 10 years after landing her SI cover.

Rebecca Romijn: Some things never change! The 41-year-old beauty continues to rock the fun, wavy hairstyle that she wore on her cover in 1999. Romijn — who is now mom to twin daughters — also still gravitates toward metal-tone ensembles. Love it!

Marisa Miller: The California cutie was certainly more covered up than she was on her 2008 cover, but the new mom didn't scrimp on sexiness. Instead of playing up her décolletage, the 35-year-old showed off her mile-long legs in a gold, sequined mini dress. Five years later, she's still smokin' hot! 

Heidi Klum: If there's one thing the German-born babe took away from her SI cover in 1998, is that it's all about simplicity. Klum, 40, kept it chic at the bash by sporting a monochromatic look consisting of a red leather trench coat dress and matching pumps. Sexy, but not overdone — just like the black-and-white bathing suit she wore on her cover.

Cheryl Tiegs: The veteran swimsuit stunner, 66, has certainly kept up her physique. The All-American model didn't bother with too many frills on most of her SI covers and she's clearly still practicing that style mantra. There's nothing better than a basic LBD. 

Kate Upton: The 21-year-old hottie didn't stray too far from her 2012 cover. The blond bombshell poured her curves into a black, floor-length gown with zipper detailing. Naturally, the dress allowed her to flaunt her ample cleavage.