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Wednesday 14 February 2018 at 02:09
I don't know about the greatest video of all time but the uncensored version of "Gimme Good Lovin" by Helix sure made an impression on my 10 year old mind at the time.
The video is complete with someone that would go on to become quite (in)famous shortly after the video was shot.
Source: http://pinside.com/pinball/forum/topic/best-music-video-ever#post-4228964