Fleetwood Mac star Lindsey Buckingham has hit back at reports Sheryl Crow will become a member of the supergroup when it tours in 2009, insisting her announcement is a little premature. Buckingham has confirmed speculation the group is planning to record and tour next year (09), but adds the idea of adding bandmate Stevie Nicks' pal Crow to the line-up in nothing but a talking point at the moment. That's why he was a little shocked when singer/songwriter Crow went public with news she would be joining the band as a replacement for Christine MCVie. He tells Billboard.com, "I don't think anything is written in stone yet. I think we were all a little surprised she was announcing that to the world with such certainty. "We have talked about the possibility of bringing another woman into the scene to kind of give Stevie (Nicks) a sort of foil and shake it up a little bit (and) she was certainly a name that has come up. We'll have to see." MCVie retired from the band a decade ago.