According to the Washington Post, you know Gangnam Style has gone the way of the dinosaurs when 81-year-old ex Senator Alan Simpson is doing it.
Incidentally, Simpson co-chaired the Simpson Bowles Plan that did not reach the 14-vote committee threshold required to send it to Congress):
How you know Gangnam Style is over: Alan Simpson is doing it in a new video. The former Wyoming senator, 81, exhorts young people to stop Instagramming their breakfast, tweeting first world problems and watching the infectious dance video. Instead, he wants them to use their social media skills for “The Can Kicks Back,” a non-partisan drive to fix the national debt. “Take part or get taken apart,” he warns. “Boy, these old coots will clean out the Treasury before you get there.”