Gisele Bundchen has said she sees modelling as a way to use her looks to help others.
The catwalk queen, the world's highest earning model, wants to put her beauty to good use so she has been working on environmental and female empowerment projects for several years.
"My life is devoted to this," she said.
"I know from the outside, people think this girl just poses for pictures, but in my head, all I'm thinking the whole time is, 'OK, if I take this job then I can have more money to put in to this action', so that's what I'm doing because that's the form that God gave me to do what I can do, right?"
The 31-year-old was recently in Nairobi with UK charity Practical Action to see how it is tackling energy poverty by building biogas centres, which turn human waste into gas for cooking.
She said: "I always try to put myself in their situation and think how would it be if that was my life, what if I were born under those circumstances and had no access to the basic needs of survival?
"I feel there is so much I have to do."
Photo: © Getty