Jessica Biel was only 17 when she appeared in this faced out men's magazine Gear, but she's incredibly regretful of that now. A lot of young stars go through this "sexy phase" in order to rise quickly. Thankfully, she stayed on top.

“It was certainly the low point of my young life. And I had no one to blame but myself," she told GQ in 2011. “I was arrogant and didn’t have anyone looking out for me. I thought I knew best.”