I've been waiting all day for someone to get a video of the impromptu Electric Slide in the Philly streets posted. Thanks to YouTuber'er macscotchale for getting these two clips up.
Philly last night:
And in the streets:
#1) Hit play on this and turn the volume up
#2) Hit play on this and turn the volume down (but not too far down!)
#3) Hit Replay again, and again, and again...