Sexiest summer swimwear

Hot, Hot, Hot! With the temperatures rising, style expert <a target="_blank" href="http://www.nadjaatwal.com">Nadja Atwal</a> gives tips on how to be a trendsetter on the beach this season. Natalie Gal models a stunning sheer bikini here. She can next be seen, a bit more covered up, starring alongside Ashton Kutcher in "Jobs." Click through for more beauties in bikinis. (photo: Natalie Holiday)

Irina Shayk Irina Shayk poses in one of her own designs inspired by the colors of Brazil. (photo: Beachbunny Swimwear)

Joanna Krupa "The Real Housewives of Miami" star was once named the sexiest swimsuit model in the world. <a target="_blank" href="https://twitter.com/joannakrupa">Joanna</a> loves animal print and will release her own swimwear line at the end of 2013. (photo: Hapari Swimwear)

N'Kenge The star of the Broadway musical "Motown " shows off the latest trend, modern '40s swimsuits. (photo: Chiun-Kai Shih)

Kira Dikhtyar Kira is the only Olympic athlete to ever become a supermodel, and in this picture, we can see why. (photo : Alessandra Fiorini for GQ)

Louann von Brochwitz Model and fashion-muse Louann von Brochwitz is known as the sexiest Nerd (she is currently working on her PhD in mathematics). She shows that sexy and provocative doesn't always mean less fabric. (photo: Jerry Fill, Concept: Emmalynn) (Copyright: Gerald Fill - Lucky Stars Media (Las Vegas, NV))

Tina Brady Tina, who models for Victoria's Secret, gives "going green" new meaning. (photo: Michael Falco)

Monica Hansen Ex-Miss Norway and international model Monica Hansen, released her own swimwear line this year. "I modeled for almost every brand and simply gathered all my knowledge plus my personal taste," she says. (Monica Hansen Beachwear)

Muriel Villera Muriel Villera, who was crowned the best Latin Model, jet-sets around the world and says, "staying classy is always in fashion." (photo : Jason Basset)