When Psy’s infectious “Gangnam Style” is in the air, legs automatically start galloping toward sunset. The pop cultural stampede brings with it a new K-Pop section on Flipboard. This English-language section pays homage to a genre that sprouted 20 years ago in South Korea as a giddy blend of Japanese and Western pop. Add it to your Flipboard to get sources like AllKpop, Kpopstarz and Soompi in one magazine.