2013's Biggest

Billboard2013's Biggest-Selling K-Pop Songs in America: PSY, Girls' Generation, 2NE1 ...BillboardUnsurprisingly, PSY leads the count for top-selling K-pop track. But it's not with his 2013 single "Gentleman," a top-5 hit on the Hot 100; rather, t's with with last year's international smash "Gangnam Style," which is still selling the Korean rapper ...