Best rock song of all times

Only one answer please.
Not the best written or the best musical complexity but the one that represents the rock.

My choice: Satisfaction - Rolling Stones

- first notes are like the 5th of Beethoven (when you hear those notes, everybody pumps up the volume)
- still very up to date
- a mix of rock and blues rock and Motown sound
- lyrics talks about disatisfaction of young people vs life, politics, money and women (even B Dylan like that song)
- music is very basic as a good rock song should be

Noting some glaring omissions:

Cream: Crossroads, White Room, SWLABR, Sunshine of Your Love, Tales of Brave Ulysses
Chambers Brothers: Time
Meatloaf: Paradise by the Dashboard Light
Eric Clapton: Cocaine
Hendrix: Purple Haze
Mr Rogers: Themesong
As far as a raw rock and roll tune goes...."can't you hear me knocking"--Stones
Best rock song of all time has to be the one that started it all. Without it all of the ones mentioned would never have happened. "Rock Around the Clock".....Bill Haley and the Comets.