6. Wire, 'Pink Flag' (1977)
No album summed up the infinite possibility in punk's radical simplicity better than this 35-minute, 21-song debut. R.E.M., Spoon and Minor Threat are just a few of the bands that have covered songs from Pink Flag, which ranges from the hardcore Rubik's Cube "1 2 X U" to the 28-second tabloid nightmare "Field Day for the Sundays" to "Fragile," punk's first pretty love song. "A perfect album," said Henry Rollins of Black Flag.