Racy 'Project Runway' ad banned in Los Angeles: Sexy star advertisements

'Project Runway'

Celebs aren't afraid to get a little sexy when it comes to ad campaigns. Whether they're flaunting their curves in sizzling lingerie or showing off their modeling chops in sultry high-fashion shoots, these celebrities are so hot you'll forget what it is exactly they're trying to sell. Check out the sexiest star advertisements ... Season 12 of "Project Runway" is right around the corner, and if this eye-popping promotional ad is any indication, it's going to be the sexiest go-around yet. Heidi Klum and Tim Gunn definitely have a "make it work" moment as they pose glamorously in over-the-top outfits while naked models fawn at their feet -- but is the billboard too sexy? It's already been banned in Los Angeles for containing too much nudity. The Lifetime series' racy ad is still slated to arrive in New York where it will run on buses and billboards.

Luisana Lopilato for Ultimo

No wonder Michael Bublé writes so many love songs! The singer’s stunning wife Luisana Lopilato shows off her curves in a new bathing suit ad for the lingerie brand Ultimo. The 26-year-old Argentinian beauty models both a sexy black and red two-piece for the brand’s summer swimwear range. Though currently six months pregnant with her and Bublé's first child, Lopilato took the photos during the early stages of her pregnancy. Check out more of her sultry campaign …

Luisana Lopilato for Ultimo

Hot mom-to-be! Bublé’s other half also models a blue cut-out one-piece and a skimpy striped bikini for Ultimo. "Our gorgeous new swimwear collection is designed for women who want the perfect cleavage for the beach," said Michelle Mone, the brand’s founder.

Kate Moss for St. Tropez

Moss shows off her flawless figure and skin while lounging in a white bathing suit for the self-tanning brand. "I'm so excited to be working with St. Tropez,” the model said in a statement. "I've been using the products since they started and it's really a trustworthy, cool brand."

Irina Shayk for Beach Bunny Swimwear

Irina Shayk is at it again, and it's safe to say she has never looked better. The stunning Russian model is putting those famous curves of hers to work in one super sexy bikini after another, this time for Beach Bunny swimwear's sizzling "Take Me to Rio" campaign. Check out the 27-year-old beauty in action ...

Irina Shayk for Beach Bunny Swimwear

And you thought Rio De Janeiro couldn't get any hotter! Forget the gorgeous beach in the background, Irina Shayk pulls out all the stops for Beach Bunny's "Take Me to Rio" campaign, pairing bright and bold bikinis with plenty of gold jewelry and festive headpieces for the swimwear line's latest collection.

Irina Shayk for Beach Bunny Swimwear

Beach Bunny Swimwear has a thing for picking outrageously hot bathing beauties. The brand also claims Kate Upton among its gorgeous brand ambassadors. Here, all eyes are on Shayk as she strikes a sultry pose in the sand. We have to hand it to the girl -- she definitely knows all her best angles. Then again, she is a pro ..

Beyonce for H&M

Beyonce will also appear in a commercial for the brand, which will feature one of her new songs, "Standing on the Sun."

Beyonce for H&M

Grammy-winning singer and new mom, Beyonce, can now add global fashion model to her resume. Queen Bey is the newest face of H&M, the cheap yet chic Swedish retailer. To ring in the summer season, Beyonce is stripping down for H&M's island-inspired summer campaign.

Beyonce for H&M

Many of the advertisements, shot on the beaches of Nassau in the Bahamas, showcase Beyonce in teeny bikinis. H&M called the campaign an "epic fantasy" and said Beyonce's influence is evident in the desig

Beyonce for H&M

Sure, she's one of the world's biggest superstars, but it looks like Beyonce has a love for affordable fashion just like the rest of us. The Grammy-winning singer is the newest face of H&M, showing off her effortlessly sexy style in the brand's island-inspired summer campaign.