'they blew'em off the stage'

Pink Floyd (opened for Savoy Brown) at the Electric Factory in Phila - Sat 9/26/70

An unknown band, ELP (touring in support of their first album) opened for Procol Harum at the Phila Spectrum Sun 4/25/71 - Keith playing the keys with knives, standing on the organ rocking the bejesus outta it, throwing knives at the speaker columns etc etc. Procol was sheepish, they knew they had a tough act to follow.

When I was in high school in the 1970's I saw Bruce Springsteen open for Chicago at the Spectrum in Philly. I wouldn't say that Springsteen blew Chicago off the stage... In fact, nobody knew who he was back then and after a few songs people started to get ugly and boo. Not nice!

Led Zepplin's debut(in the States) blew away Spirit(I think it was the Filmore West.). Lonnie Mack blew away Edgar Winter at the Filmore West. Grateful Dead blew away the Band-New Year's Eve at the Civic Auditorium in S.F.

Youngbloods blew away Electric Flag, Loading Zone, the Doors and other groups at the Santa Clara Fairgrounds circa 1969. It might have been because they used tube equipment(just guessing).

John Cougar Mellencamp destroyed Heart in Casper,WY.(early 80's) He did 3 encores to boot. Great show.