19. Jessica Biel

This is a girl who does not shy away from getting her hands dirty and engaging in strenuous exercises such as hardcore circuit training. Jessica Biel also loves the great outdoors; particularly snowboarding, hiking as well as water rafting. Back in 2010, Jessica Biel accomplished her dream of ascending from Mount Kilimanjaro. Also See: Top 10 Most expensive Lamborghini cars (With Pictures)