i was at Live Aid in 1986 and they came out at 10:30 in the morning and kicked a$$!!!
The first, and only time I saw them was in the early spring/late winter of 1971 at Winterland in San Francisco.
Yes was the warm-up band with Rick Wakeman doing his wizard schtick.
Black Sabbath blew them away and left everyone stunned, dumbfounded even. To this day in the top 2 or 3 shows I’ve ever seen.