When I go out on the runway, I can feel the audience vibrate.

I have to avoid sweet food because it's my weakness, and it's really hard. What you eat will definitely affect your skin, so I really try to stay away from sweets.

If somebody says, 'That's Elon's mum,' which happens quite a bit, they are usually stunned; sometimes they cry. I'm flattered because, I mean, to them, he's saving the world. They just feel he's the only hope.

I'm not good at sports, but I do exercise because we have to move. Besides walking my dog four times a day, I go to the gym and do 30 minutes on a stationary bike while reading a book because I get bored, then 10 minutes of weights and 10 of stretches.

After divorcing, I left South Africa to live in Toronto. They were tough years. On my own with three young children and no income. I'd cry when they spilt milk because I didn't have the money to buy any more.