Transformation

Jessica Biel is an undeniable bombshell. Back when she was a Camden kid on 7th Heaven, her full lips and delicate features launched a thousand teenage crushes. Yet the star of Easy Virtue has always kept her beauty routine simple. "For Christmas when I was 12," Biel has said, "[my mother] gave me a cleanser, toner and moisturizer and said 'Make a little effort now, and it will make a big difference in the long run.'" Clearly, the regimen has paid off, most recently with a global ambassadorship for Revlon. Still, her soundest beauty tip goes below the epidermis, with this advice to all aspiring heartbreakers: "Every young girl should know that being strong physically and mentally is beautiful."

1998: The 7th Heaven star chopped her hair into a punky bob. She later said of the haircut, "When I look back, I'm like, 'Ugh!'"