"Well, there's something coming. I'm not really quite sure what it is yet," May tells Rolling Stone. "I don't know if there's a whole album. There's a piece of an album. We were looking at putting together a compilation of the more unusual and yet memorable Queen tracks. Things that weren't singles that have become or stayed popular through the years. That's the way it started and then we unearthed a few tapes of Freddie singing and us in the studio that we never finished off. We thought we got to the end of it with [1995's] 'Made in Heaven'. But there are a few other things which have turned up. So the album may turn out to be a mixture of some unusual things from the past and some very unusual things which no one has heard at all."

May and drummer Roger Taylor are recording new backing tracks to the Mercury material, just as they did for the "Made In Heaven" album. "Roger and I have both been working on tracks in our spare time," he says. "A couple of them have Michael Jackson on as well, which adds another layer of interest. Freddie and Michael singing together and experimenting in the Eighties."