Watch Nirvana play "Smells Like Teen Spirit" for the first time

In April of 1991, Nirvana debuted an in-progress version of their current-day smash hit, “Smells Like Teen Spirit.” They performed the track during a gig at the OK Hotel in Seattle. In the video below, you can hear a fan shout, “Play ‘Free Bird’!” before Kurt jumps into the track’s infamous lead riff. Those in attendance that night witnessed an incredibly pivotal moment in rock n’ roll history, and a good portion most likely had no idea.

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“I was trying to write the ultimate pop song,” frontman Kurt Cobain told Rolling Stone in 1993. “I was basically trying to rip off the Pixies. I have to admit it. We used their sense of dynamics, being soft and quiet and then loud and hard. It was such a cliched riff It was so close to a Boston riff or 'Louie, Louie.' When I came up with the guitar part, Krist [Novoselic] looked at me and said, 'That is so ridiculous.' I made the band play it for an hour and a half.”