Less than six months after its July 15 release, “Gangnam Style” reached 1 billion views on YouTube and became the platform’s most-watched clip ever in late November. Social media managers for big brands across the world latched onto the Korean electronica dance hit’s international success, infusing their Facebook marketing with their own takes on the song’s video. Intel gained the most Facebook engagement, shows data shared first with Mashable from social media analysis company Unmetric. Intel’s Facebook photo post — featuring a man in an Intel shirt doing the “Gangnam Style” dance in a horse stable — has more than 500,000 Likes, 40,000 shares and 13,000 comments since Sept. 15.