Nirvana, live in Vienna, before they were famous and instead spent a fair amount of this concert yelling at Austrian homophobes:

http://www.rollogrady.com/nirvana-u4-club-vienna-austria-11221989/

Talking Heads, Fear of Music tour, right before the cusp of greatness (and a doubling of the band) that is "Remain in Light":

http://artdecade.blogspot.com/2008/11/september-29-1979-stardust-ballroom-los.html