In case you were wondering... Smells Like Teen Spirit begins around 23:40.
Make sure you don't miss a brawl between a security guard and Kurt Cobain....
43:25 Cobain decided to leap into the crowd
43:27 Crowd catches him and the cluster of fans pushes him toward the stage
43:30 a burly security guard gets kicked by Cobain; the crowd grabs Cobain and the guard grabs him too
43:33 Security guard yanks on Cobains hair
43:35 Cobain decks security guard with his guitar
43:40 Cobain gets dragged back on stage but is on his back
43:41 Cobain springs up
43:42 Security guard clocks Cobain in back of head then kicks him
43:44 Music stops; Two random fans jump on stage and grab the security guard
43:45 Dave Grohl throws his drumstick and jumps into fracas with fans and guard
43:50 While fans successfully pull guard away, bass player Krist Novoselic intervenes as the peacemaker
44:10 Chants of "Bullshit! Bullshit!" from crowd begin