HOT GALLERY: Pre-Fame Celebs Sizzle in Sexy Summer Swimwear

Martha, Martha, Martha! This photo, taken during the daytime doyenne’s modeling days, shows the svelte crafting diva as we have never seen her. No word on whether she immediately stepped off-camera to knit herself an organic cotton lace cover-up.

Jennifer Connelly keeps the curves dream alive in her brown two-piece. In 2010, Connelly caught flak for maintaining an extremely thin figure, though many pointed out her weight loss had to do with the strain of her father’s passing. Today, Connelly is healthy and a mom to three children.

A young Denise Richards deserves props here for sporting a bikini and wet hair—while managing not to be electrocuted by her giant cordless phone. Next up, the actress will be seen in ABC Family's Twisted.

Ricci knew how to make vintage work from a young age. Here, a young, steely-eyed Christina Ricci rocks a retro two-piece complete with a blood red manicure and necessary Mad Men-style cigarette in hand. Why so somber, Ricci? Is it because your hand has fallen asleep behind your head?

Here a young Cameron Diaz get points for the most creative way to pose in a bikini—underwater and in high heels. (How she’s also managing to hold her position and not lurch forward into a watery abyss is a mystery of science.) Today, the fit 41-year-old would have no problem with a repeat performance.

Nothing got between her and her Calvins—except perhaps a reptilian-styled string bikini. Here we see 1980s dream girl Brooke Shields showing exactly how face-framing in photos is done. Today, the mom of two rocks more than a swimsuit, with a thriving film and TV career.

Here we see a bronzed Kardashian rocking a bikini with a tan that would make a Jersey Shore native proud. Apparently, the reigning queen of kitschy culture has always been proud of her curves.

A young Jolie posed in this bikini, clad in baby cheeks and innocent pink. Who knew that by the end of the decade, she’d be terrorizing Hollywood with sibling kisses and blood jewelry? Today, the vixen turned humanitarian is more likely to be clad in awards and accolades.

Ay dios mio! Here we see a young Sofia Vergara sporting a bikini in a Pepsi commercial. Today, she’s a success on the Emmy-winning TV show Modern Family. This is not surprising. Judging by the look on her face, whatever Sofia wants, Sofia gets.