The best answer I could find is that he thought inspiration came from hard work and discipline. A quote that supports this point would be when he said: "To know what you're going to draw, you have to begin drawing." So, inspirations doesn't just happen by chance.
Answer:
When I as 9
Explanation:
The first performance I have every done of music was when I was 9. I did this because all my friends did. I felt scared and nervous because I thought I was going to mess up.