Playing in my early bands, working as a studio musician, producing and going to art school was, in retrospect, my apprenticeship. I was learning and creating a solid foundation of ideas, but I wasn't really playing music.

I wanted to emulate music from America - young punks playing rock n' roll is what it was. I read part of Keith Richards' autobiography, and it was totally parallel with me, learning from American records.

There's such a currency to Led Zeppelin, or the members of Led Zeppelin. If I put it to you this way, on the run-up to the O2 concert, the only music that we played was music of Led Zeppelin - the past catalog stuff; that's what we played on the way towards shaping up the set list for that. But we played really, really well.

You get a chance like that maybe once in your lifetime, and you are lucky to sustain it over that period of time. It doesn't mean to say that whatever I do in the future has no substance to it - I may present some new material I've got, and there are definitely new angles of doing it - but I'm not looking to recreate another Led Zeppelin.

I did grow up in a military family but lacked the perspective to grasp the cognitive dissonance carried by most people who serve in the armed forces or the circumstances that push lots of folks into the military. I don't blame G.I. Joe or Rambo for that atmosphere, but they certainly reflected the final stage of a two generation cultural myth.

My grandfather was born in India and three generations of my family served there.

I love entertaining people, I love playing music, and I love rocking like an animal. But at a certain point, you're playing gig after gig after gig, in town after town after town, and you're lying down, staring at another hotel-room ceiling, and it's like, 'I want to be home. I'm a dad. I've got kids.'

I know the pressures of being the daughter of a great actress. But it's inspiring. You learn so much that other people don't get to learn until later on. My father being a director, I learnt a real work ethic.