My thighs were huge; they were like rock! Growing up, I was really athletic, and I had a very athletic body.

I usually do my hair and makeup in 30 to 45 minutes, and if my hair is dirty, I'll just put it in a bun or a ponytail. If it's in a bun, I'll part it down the middle and do a low bun with a couple pieces in the front coming down.

My Pirelli calendar is hanging on the wall of my friend's frat house, and he doesn't know anything about fashion. That balance is what leads to big campaigns outside of fashion. But I never want to choose one or the other. Both commercial and high fashion are what make my job so interesting.

I will be the first to say, when I started, I was the worst on the runway ever. I feel like I try to keep learning every time I step off a runway; I try to get better with each one. I hope that I'm getting better as I go - it takes a few seasons to get your Karlie Kloss walk on.

No athlete ever ends his or her career the way you want to. We all want to play forever. But it doesn't work that way. Accepting the end gracefully is part of being a professional athlete.

A lot of people think Formula One isn't a sport because everyone drives a car when they go to work in the morning. But we're pulling up to six G on a corner or during breaking, which is almost like being a fighter pilot. So we have to do a lot of work on our neck muscles.

Football is a competition to see who's the best, not a battle. It's not a war. When it ends, we're still alive.

To meet my goals, I couldn't let up when I was playing tennis.