2NE1 (Korean: 투애니원, IPA: [tʰu.ɛ.ni.wʌn]) was a South Korean girl group that was composed of Bom, CL, Dara, and Minzy. The group was formed by YG Entertainment in 2009. After appearing alongside boy band Big Bang on the promotional single "Lollipop", the group rose to fame with the release of their eponymous extended plays 2NE1 (2009) and 2NE1 (2011), and studio albums, To Anyone (2010) and Crush (2014); all of which peaked at number one on the Gaon Album Chart. The group also had nine number-one hits on the Gaon Digital Chart, which include "Go Away", "I Am the Best", "I Love You", and "Come Back Home".
The quartet conducted a successful parallel career in Japan, first releasing a Japanese version of their second EP Nolza (2011) and following up with the studio albums Collection (2012) and Crush (2014). Following a long hiatus, Minzy left the group in April 2016, while the remaining members disbanded that November. Their final single "Goodbye" was released on January 21, 2017.At the peak of their career, 2NE1 was considered one of the most successful and popular girl groups in South Korea. They have reportedly sold 66.5 million records, which would make them one of the best-selling girl groups of all time. Billboard magazine ranked 2NE1 as one of the best K-pop girl groups of the past decade while The New York Times named 2NE1's performance at the Prudential Center in New Jersey as one of the "Best Concerts of 2012".