"Nobody" is a song performed by South Korean girl group Wonder Girls, from their first EP, The Wonder Years: Trilogy (2008). It was released as a digital download single on September 22, 2008 in South Korea. The song was written and produced by Park Jin-young and features a sample from the Italian trio La La's "Johnny Johnny." It became popular within hours, becoming a top search term and ranking number one on various digital music sites. The song is recorded and released in four different languages: Korean, English, Mandarin Chinese, and Japanese.

A live performance video of "Nobody" at M! Countdown was for some period of time the most viewed K-pop video on YouTube, until being surpassed on September 1, 2011 by the music video for "Gee" by Girls' Generation. The live performance was also the first K-pop video to reach 50 million views on YouTube (in 2011).

The single became very successful in the countries where it was released, topped charts both in South Korea, China and United States.

The single was the title track from their first mini-album entitled "The Wonder Years: Trilogy", the single became a smash-hit in all Korean charts, and sold 4,648,973 digital downloads in South Korea alone.

The group's official MySpace stated that an English version of "Nobody" would be released in the United States sometime in 2009, serving as their debut single there, with JYP Entertainment confirming the release in June 2009. "Nobody" was released to iTunes on June 26, 2009 and to Amazon MP3 a day later. Wonder Girls have set up an official YouTube account and it includes the English version of music video itself.

...
Wikipedia