7월 21, 2010 Its amazing how a little makeup, a personal trainer, thousands of dollars in plastic surgery and a designer wardrobe can make the mousiest ladies look like "Perfect 10" bombshells. Well, actually, it's not amazing, per se, but it is fun to compare the before and after pics! So click through to take a look at the top 10 sexiest female celebrity transformations. #7. Jessica Biel Ever since her awkward-ish "7th Heaven" days, you could tell that Jessica Biel was going to grow up into a beauty. She has always been pretty, but who knew that she would one day be known for her perfect, ahem, assets. Not just any ol' young actress can snag Justin Timberlake off the market.(Source: By Michelle Lanz of MSN WonderWall) (Photos: Retna Ltd) For more transformations, click here >> http://bit.ly/bSa3mu