South Korea has been invaded, not by it’s neighbor from the North, but from troops of long-legged girls in the guise of carefully manufactured Kpop groups. The small peninsula of around 50 million people has seen an explosion of Kpop girl groups in the past year who all pretty much look and sound alike (arguably) but somehow manage to maintain popularity among a shared fan base. While it might be easy to dismiss this as eye-candy for teenage boys (of which there is some truth) they appear to have considerable staying power among a diverse demographic of both men and women – “In the past, one or two similar bands won fans and massive popularity, while the rest disappeared quietly after a month or two. What we are experiencing…