Out of all the post-Nirvana American alternative bands to break into the pop mainstream, Green Day were second only to Pearl Jam in terms of influence. At their core, Green Day were simply punk revivalists, recharging the energy of speedy, catchy three-chord punk-pop songs. Though their music wasn't particularly innovative, they brought the sound of late-'70s punk to a new, younger generation with "Dookie", their 1994 major-label debut. ...