It's not the first time Mick Fleetwood has had to say goodbye to valued band members, but he admits some soul-searching will follow the departures of Stevie Nicks and Christine McVie.

"I just don't think anyone has realized how sad it's really going to be," Fleetwood said Monday in Los Angeles.Fleetwood Mac's current tour is scheduled to end Dec. 7, marking the end of the two singers' formal association with the band.

The two want less stress and more time to focus on their solo careers and personal affairs, Fleetwood said. There is a chance they will record an album with the group before leaving, but it's not definite.