"Gangnam Style" is a single released by South Korean rapper Psy on July 15, 2012. It achieved pop cultural shift in a way unseen previously in pop culture, beating the likes of LMFAO with Party Rock Anthem. It has achieved widespread international recognition and became the most viewed YouTube video, becoming the first one to gain a billion views on December 21, 2012. "Gangnam Style"'s unprecedented worldwide popularity was acknowledged by YouTube, who called it a "massive" hit at a global level "unlike anything we've ever seen before" while Billboard noted that "Gangnam Style" was nothing short of a pop culture phenomenon. As a result, it has influenced worldwide popular culture in many aspects.