People ask me if I am going to write my memoirs. But even if I wanted to, I would not be able. I have extremely few memories.

All these years later, I have almost no memory of the shows themselves. It's a blur. I remember my jogging runs better - that was my way of getting my energy together. I used to try to get to the arena as late as possible; otherwise, I'd just be pacing around, waiting to go on.

In the beginning of my career, I wanted to be chased by girls more than anything - that's why I got the guitar. By the time we were in ABBA, the music was the only important thing.

In my career the push has always been to take another step, to try something new.

Happiness is fleeting - I think that's the main lesson I have learned.

As I've got older, I've really had to dig deep and find where my happiness comes from. Why do I play tennis? You get a lot of incredible highs, but it can be very lonely with some dark lows. So the biggest thing I've learned is finding the reasons for my enjoyment.

You need characters who want things. They want love, they want recognition, they want happiness.

My beauty ethos? Well, I'd love to tell you it's something like 'less is more,' but honestly, it all starts with happiness. If only someone could bottle that up - when I'm happy, I'm at my most radiant and glowing. It does me better than any product ever could. And I stand by how cheesy and cliched that sounds.