'they blew'em off the stage'

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.

I didn't think anyone would remember the Loading Zone. They made the bill with the Who at the Fillmore in '67, but they did not blow away the Who. The real ear opener was some unknown group not even on the bill - Santana! I saw the poster for sale a couple of years back and I wanted it for what was not on it, but at this point, collectible and expensive.

Styx opened for Joe Cocker in Birmingham, AL back in the '70's. The audience either booed Cocker or simply left.