Girls' Generation (Korean: 소녀시대, Hanja/Kanji: 少女時代; Sonyeo Sidae, Shōjo Jidai) is a nine-member South Korean girl group formed by S.M. Entertainment in 2007. The nine members are: Taeyeon (Leader), Jessica, Sunny, Tiffany, Hyoyeon, Yuri, Sooyoung, Yoona, and Seohyun. They are often referred to as SoShi (소시, Hanja: 少時), or SNSD, the first of which is an abbreviation and the second, mainly used outside Korea, is an acronym of the group's Korean name So Nyuh Shi Dae.

The group has released two Korean full albums, three Korean mini-albums, one Japanese full album and various singles. Their 2009 hit single "Gee" holds the record for being the longest running No.1 song on KBS's Music Bank, having held the No.1 chart ranking for -9 consecutive weeks. Gee was named song of the decade by the Korean music site, Melon. The group also won various awards in 2009 and 2010, including consecutive Artist of the Year (Daesang) awards at the Seoul Music Awards, Golden Disk Awards, Melon Music Awards, and the Korean Cultural Entertainment Awards.

The group began a foray into the Japanese music scene in late 2010 under Nayutawave Records, a part of Universal Music, with the Japanese remakes of their 2009 Korean hits "Tell Me Your Wish (Genie)" and "Gee". 2010 saw the group reach considerable success in Korea after winning the prestigious Disk Daesang (Album of the Year), Seoul Music Awards, and Melon Music Awards respectively.

Till end of July, SNSD have sold over 2 million copies of their album, mini-album and singles throughout their career in Korea and Japan, which is an unusual feat for any Korean girlgroup, followed by KARA.
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Career SNSD
2007–2008: Debut and self-titled album
2009: Gee, Genie and rising popularity
2010: Oh!/Run Devil Run, Japanese debut and Hoot
2011: MR. TAXI, Girls' Generation, and impending Korean comeback