The explanation from WPXI in Pittsburgh is simple: "A group of men stuck in a traffic backup during Monday's winter weather decided to kill time by dancing on Interstate 80."
The reporter then says, "I have been covering weather stories for 20 years now, and never have I seen what we are about to show you."
That's really all you can say about this video:
You may be asking yourself, "Doesn't the music in the background sound like the tune from the awful video of that European guy 'dancing' in front of his computer?" Why yes it does: