You want to be skinny and have a good body? You have to work out every day and say no to certain foods.

Live your life to the fullest.

After all, by providing early access to medicine, nutrition and stimulation, early childhood development creates lifelong improvements in health, cognitive development, school achievement, and social equality.

I admire Madonna because she always did whatever she felt like doing. She went through some controversial periods when people rejected her, but she kept on reinventing herself.

Because of you, I'm running out of reasons to cry.

I'm proud that I've been able to work with other artists to make sure that the smallest voices - the voices of our children - have a chance to be heard. Artists can reach, inspire, and motivate young people and leaders in a powerful way.

I started the Pies Descalzos foundation in Colombia when I was 18, and since then I have been very involved in the crusade for education.