"
Gangnam Style" (, ) is the 18th
K-pop single by the South Korean musician
Psy. The song was released on July 15, 2012, as the
lead single of his sixth studio album
Psy 6 (Six Rules), Part 1, and debuted at number one on South Korea's
Gaon Chart. On December 21, 2012, "Gangnam Style" became the first
YouTube video to reach one billion views. The
song's music video has been viewed over 2.51 billion times on YouTube, and has been
YouTube's most watched video since November 24, 2012, when it surpassed the music video for "
Baby" by
Justin Bieber.