I certainly didn't grow up ever having to worry about where my next meal was coming from. The fact that so many people, even in our own country, worry about something so basic, it's something I really wanted to help to do something about.

I created FEED as a way to provide people with a tangible way to make an impact in the fight against hunger, with each purchase of a FEED product donating meals directly to children in need.

There are many people I admire and seek advice from, but for the most part, I just follow my gut instead of trying to mimic someone else's leadership style.

My first big job was an Abercrombie &Fitch campaign. But my mom wouldn't let me skip school for it, so I missed half of the shoot. When we got there, we realized Bruce Weber was the photographer; we knew we had made a mistake!

We know cancer is caused ultimately via a link between the environment and genes. There are genes inside cells that tell cells to grow and the same genes tell cells to stop growing. When you deregulate these genes, you unleash cancer. Now, what disrupts these genes? Mutations.

My waist used to be tiny. I just saw a picture of Miley Cyrus with a little crop top and low pants, and I'm like, 'That was me growing up in Brazil!' I had the typical model body, but after babies, it changed. I look more like a woman.

I'm still very bullish on emerging markets. There's an emerging middle class. They're a growing group of customers. And frankly, they want Walmart. They want everyday low price. And that's why we are continuing to grow in the emerging markets around the world, too.

We do not always appreciate the role the Queen has played in one of the most significant changes in the past 60 years: the transformation of Britain into a multi-ethnic, multi-faith society. No one does interfaith better than the Royal family, and it starts with the Queen herself.