Name: BarryNet Message Board Date/Time: 7/11/2020 2:12 AM Subject: 40 Years Ago Today (July 11, 1980): Pine Knob in Clarkston, Michigan! This Day in MANILOW History - July 11th: Barry Manilow opened a five-night concert engagement of his 1980 WORLD TOUR at Pine Knob in Clarkston, Michigan, FORTY Years Ago TODAY (July 11, 1980)!