Sizzling Celebrity Swimsuits -- Big Business

4/23/2006 8:17 PM PDT

Sizzling Celebrity Swimsuits -- Big Business

The bikini is turning 60 this year and while no one wants to see the 'Golden Girls' in their bathing suits, Eva Longoria and Paris Hilton are a completely different story. Women's swimwear is a $3 billion industry and for designers, getting their wares on the backs of Tinseltown's hottest booties can be big business.

Designers routinely send swimsuits to trendsetting stars like Nicole Richie and Keira Knightley, free of charge, knowing that the media exposure will translate into higher demand from paying customers. Take Shay Todd for example. When Longoria showed up to the 2005 MTV Video Music Awards in his pink, ruffled one-piece, sales went through the roof.

While most of us wouldn't dream of wearing a Speedo as evening wear, who wouldn't kill to look like Jessica Alba or Scarlett Johansson. See if you can tell which Hollywood hottie dared to bare in a bikini, and who played it safe in a one-piece?