I know I'm representing a group - black, Latin, whatever you want to put me with - and I want to show that they are beautiful the way they are. I think that's really important for our youth to see.

I want to last in my career, and that relies on the way my body performs. So I need to take care of it.

My mom always tells me, 'Joan, you're the brightest star. Embrace your strength and your power when you walk into a room.' So I always have that in me to have that confidence.

It always just feels good going back home. It feels like nothing has changed. Seeing my room, the views. It, like, grounds you.

One cabbie chastened me by saying that the fashion industry was doing harm to young people, who are trying to live up to an unrealistic ideal. It prompted me to make body image and diversity key issues on 'The Business of Fashion.'

I'm rebelling against being handed a career, like, 'You're the next this; you're the next that.' I'm not the next anything, I'm the first me. I can't be myself, I can't just be Idris Elba. But that's just the nature of the business.

I was such a nerd, a complete geek, but then I was lucky enough to have a fancy career, where I can be like 'See, I'm not a nerd. Look, I'm in 'Vogue.'

I understand marketing. I understand licensing. I understand the business side of our business. That comes from paying attention and wanting to do better, not just as an in-ring performer but as someone who loves the industry.