I got my first real bass guitar in my hands when I was 14 - a 1957 Fender Precision, which is still hanging on the wall in my front room. I loved the heaviness of it and the feel of the wood. I still do.

As Mick Jagger will tell you, performing is an aerobic work-out. I've got the bass guitar, which is the heaviest of all the instruments, and I'm a little girl, in boiling-hot leather under the lights. You have to keep the fitness level up if you want to look good up there.

The bass player's function, along with the drums, is to be the engine that drives the car... everything else is merely colours.

The bass player's function, along with the drums, is to be the engine that drives the car... everything else is merely colours.

Inside, I feel 30ish - I'm childish and optimistic.

I joined an all-girl band in Detroit and, although I was a pianist and drummer, I was asked to play bass because no one else wanted to. When I strapped it on, it fit me as good as my leathers. At the first gig we played, I looked out at the audience and thought, 'This is what I'm going to be doing for the rest of my life.'