The Prodigy!
I don't want to be a "cool wall whore" but can I suggest Paul van Dyk as well?
I want to see people's reaction to him or if people have even heard of him. He is probably the best or 2nd best DJ in the world.
Wow, for some of these bands, you would have to have no discernible taste for good music to call them uncool! You would basically have to be my sister.
Wow, so many good bands, hard to name just one. Groups like the Stones, Grand Funk, Kinks, The Who, and I'm flabbergasted that nobody has mentioned the Beatles yet. Anyhow, my nomination would be The Doors.