"I love doing what I'm doing. An artist never stops drawing. As long as you can imagine is as long as you are going to be creative."
The star also confirmed he was still working on a new album, titled Through The Eyes Of Wonder, which he first discussed in 2008.
The project has previously been described as a performance piece that will reflect his experience as a blind man.
It would be his first studio album since 2005's A Time To Love; extending a recording career that started in 1962, when he was just 11 years old.

