Who left a Brit Award for Outstanding Contribution to Music winning band in August 1987 before their Shake the Cage tour?
Shake the Cage Tour:  This was the first tour since 1974 without Lindsey Buckingham, who left the band in August 1987. Fleetwood Mac:  In 1998, selected members of Fleetwood Mac were inducted into the Rock and Roll Hall of Fame, and received the Brit Award for Outstanding Contribution to Music.
Lindsey Buckingham