It's unlikely that many people in the USA, unless they're in the Korean or otaku communities, have ever heard of the hugely popular Korean girl group, Girls' Generation. For the purpose of today's lesson, I'm posting one of their first big hits, Gee, from early 2009. It was named song of the decade by the Korean music site, Melon and, at the time I'm posting this, the video has 52,219,736 views on YouTube. (I'd recommend that anyone prone to diabetes limit themselves to no more than the first minute or so of the video.)
One year later, they released the video for their hit, Run Devil Run.