I’d edit out all my gauche incomprehension.

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?

There was a very large part of my 20s where I was an alcoholic, and an addict. When I lost my dad to cirrhosis, I knew that the only difference between us was that, tragically, he couldn’t stop whereas I could.

I would not toy with people's affections as much.

Bill Drummond, Thomas Bangalter and Jay-Z.

Cleaning toilets in a motorway service station.

I would obviously be in a good place chemically, the synapses would be content. I would play with my kids. I don’t think I would have time to watch anything by Ingmar Bergman. Bergman would suddenly feel like not that good a director if I only had a few hours.

My brother was singing Yellow Submarine on stage with his class. I was singing along with them, showing off cos I knew all the words. The song ended suddenly and I was the only one in the whole hall who sang, 'We ...'

To my dad for not making it back to Birmingham to see him while I was in London doing The Streets.

Infinite money might allow me to achieve unbounded creativity.