The "Harlem Shake" dance meme has "has gone international" in the ad world, writes Shareen Pathak, and despite one ad-industry columnist inveighing against the inevitable trend, it has also been adopted by Chili's, A&W and Pepsi, among other brands. Videos by TBWA Paris, Grey Moscow, DDB Barcelona and M&C Saatchi Johannesburg add to a roster of Harlem-shaking agencies that now exceeds 60.