The Beatles

Apart from the fact that they rewrote the rules of pop music, that in '68 they played punk with "Helter Skelter," that they produced tracks like "She's Leaving Home," "Here There & Everywhere," "Let It Be," "The Long & Winding Road," and the second side of "Abbey Road," that bands like the Cure and XTC wouldn't have existed without them, that they set the fashion in the '60s and produced an industrial quantity of epigones, apart from this, they wouldn't even be a fundamental band.