It never should have worked. Since its formation in 1967, Fleetwood Mac had endured radical personnel changes, a stylistic shift from blues to rock, even a challenge from a "fake Mac" claiming to be the band in concert. When guitarist-songwriter-vocalist Bob Welch became the latest member to pass through the Fleetwood Mac revolving door, Mick Fleetwood and the husband and wife team of John and Christine McVie invited two young Californians to bolster the line-up. Lindsey Buckingham and his