It was incredible, Lady Gaga came to see the piece. She didn't sit with me, but it was all atwitter. Every single kid from 12 to 18 ran to see Lady Gaga and then Lady Gaga left and they stayed. And they stayed another day another day and it created a completely different culture, a different audience that I never had before.

From the very early stage when I started doing performance art in the '70s, the general attitude - not just me, but also my colleagues - was that there should not be any documentation, that the performance itself is artwork and there should be no documentation.

When I was 14, I thought I looked terrible. I wore these typical Slavic shoes with metal bottoms so you could always hear me coming and this really ugly princess skirt and blouse with the top button closed. I had a boy haircut, a baby face covered with pimples, and a really big nose.

I want to dominate the man's world.

There's nothing more tragic than artists from the 70s still doing art from the 70s.

If you have to do durational work, you have to train! No bullshit. You can't do it for three months. You can do it for five hours, 10 hours, and then you have three months rest. If this is your job, you have to be flexible.

When Lady Gaga says I am her inspiration, you reach kids between 12 and 18. Now I am like a brand - jeans, Coca-Cola.