Jimi Jamison sang on five Top 40 singles . He left them after the No . 1 hit ` ` Eye of the Tiger '' Original lead singer Dave Bickler left the band for medical reasons . He was 63 .
Jimi Jamison sang on five Top 20 singles . He joined Survivor after the No . 1 hit `` Eye of the Tiger '' Original lead singer Dave Bickler left the band for medical reasons . He was 63 .