I don`t know what next year will bring. I have no idea. I can tell you I have a lot of ideas for songs, a lot of things I want to try, and a lot of new ways of writing I want to explore, and I`m very excited about trying all of that.

It`s the most explosive, intense rock phenomenon ever seen. I am in awe every night, ... (Grohl) has such endless energy and intensity night after night screaming his lungs out. I don`t see how he does it.

It`s up in the air, ... But in my mind, it`s up in the air for every artist. Who knows, really, if they are going to record another record?

When we were putting the album together and finishing up the artwork, I didn`t know what was going to happen in the future, and I told everyone that. I told them, `Let`s commit to this year, and see what happens,` ... And that was one of the reasons why I put that quote in there, because I thought it`s a really nice way to say goodbye, if it is a goodbye.

It`s been two and a-half years now, actually. The vow is over, but I wanted to keep cruising.

It didn`t go smoothly; it was the most contentious thing I`ve ever done.