Certain artists define an era. Elvis Presley. The Beatles. The Sex Pistols. For the end of the millennium, it was Nirvana, the mega-talented grunge rockers who exploded out of Seattle in the late 1980s. Under the incandescent leadership of Kurt Cobain, the band achieved worldwide fame with the 1991 release of Nevermind and its iconic single, "Smells Like Teen Spirit."? Though the band released just one more album before Cobain's demons drove him to...