While The Sex Pistols are not the only punk band nor are the necessarily the progenitors of the "punk" sound, but The Sex Pistols were perhaps punk personified. We are talking about a band from the U.K. who wrote a song ragging on THE Queen. They also refused to attend their induction into the Rock and Roll Hall of Fame. Not only did their music tap into a vein of anger, the band themselves embodied the rebellious, punk spirit (as self-destructive as it was). The band only recorded one album, but that one album has proven to be one of the most influential albums not only in rock and punk, but music as a whole.
The punk world of Sunset Overdrive would have been a perfect match for The Sex Pistols.