“I'm remixing an R.E.M. track called 'I've Been High' from their last album, 'Reveal.' It's a beautiful song, but record execs didn't put it out as a single because it didn't sound like the R.E.M. we're used to. So I asked Michael Stipe if I could have the tapes to do a remix, and he agreed.”

“After my first No. 1 song back in 2006, I worried I may never have another one.”