Walking in the rainforest with my mother, back in Nicaragua. She loved it, and inspired me to devote much of my life to protecting the environment.

When I first heard one of our records on the radio.

Last night, having dinner with my husband, John, my son, Jonathan, and his girlfriend, Maude.

When I was 15 or 16 - I slept really well then. Now I sleep on a bed of anxiety-tipped nails.

Successful like my two uncles, who were paper industry magnates.

It’s a calm and secure feeling of deep loyalty.

Bill Gates. Not only did he build Microsoft, he went on with his wife to create the Bill & Melinda Gates Foundation. They support the, in my view, single most important factor in making the world a better place – empowerment of women and girls.

A cabaret act with Agnetha, Frida and Benny. It was in a nightclub in Gothenburg and one night we had seven in the audience. It was before we found out that we were a pop group.

In my professional life, the musical Chess on Broadway. It was a resounding fiasco and played for two months. The butcher of Broadway, Frank Rich of the New York Times, was probably very pleased: I’ve never seen such a bad review in my life.

My surname. You have no idea how many versions I’ve read and heard. It was especially irritating during my Abba years. You can imagine someone calling our hotel and saying: “I’d like to speak to one of the guys in Abba.” Who do you think the receptionist called, Andersson or Ulvaeus?