In 1991, Nirvana released their breakthrough single, “Smells Like Teen Spirit,” the lead-off track on their landmark album Nevermind. Twenty years after lead singer Kurt Cobain’s tragic death (and with Nirvana set for induction into the Rock and Roll Hall of Fame), longtime Nirvana historian Gillian G. Gaar, takes a closer look at this legendary song, through its creation and recording to the filming of the captivating video.