VIDEO : Lindsey Buckingham Has Left Fleetwood Mac

Lindsey Buckingham, lead guitarist and a key songwriter for Fleetwood Mac for more than half of its existence, is again leaving the group, this time just two months before its new tour, the band said in a brief statement Monday. The immediate fate of the tour wasn't known Monday night. Rolling Stone and Variety, without naming their sources, reported that Buckingham had been fired ? a not-implausible development in light of the band's tumultuous 50-year history. Buckingham himself left the band in 1987 and stayed away for almost a decade, returning only to play at Bill Clinton's presidential inauguration in 1992.