I just got a call one day from Ringo asking me if I wanted to go out on the tour. It was as simple as that. He was putting together this band and he heard of me in the context of doing this and he gave me a call. I jumped at the chance.
Sometimes it's necessary to go a long distance out of the way in order to come back a short distance correctly.
It's a burden trying to keep a secret. It's hard. It probably takes more out of you trying to hold it and keep it than it does for you to really let it out.