Oh! (Girls' Generation song)

"Oh!" is a song by South Korean girl group Girls' Generation. The song is a lead single from the second studio album of the same name and was digitally released on January 25, 2010. The group used a cheerleader concept for the song's promotional activities. The song reached number one on the Gaon Digital Chart and won several times on the Korean music chart shows Music Bank and Inkigayo. The song ranked at number five on the year-end Gaon Digital Chart for 2010 and was also the second best selling single of the year, selling over 3.3 million copies. Music site Monkey3 named "Oh!" the best song in 2010.

"Oh!" was remade as a Japanese song for the group's second single from their second Japanese album Girls & Peace. It was their fifth Japanese single. The music video for "Oh!" was released on September 14, 2012. Promotion for the single began on Hey! Hey! Hey! Music Champ. The single ranked highly among Japanese music charts, clinching the top spot on the Oricon Daily and Weekly single chart as well as the top spot on the Japan Hot 100. The single was released with the song, "All My Love Is for You", on September 26, 2012, with an accompanying music video premiering on September 14, 2012.