2NE1 was first mentioned by South Korean press in late 2004. Both Spica's Bohyung and Fiestar's Linzy were trainees alongside the 2NE1 members. However, they were eliminated before debut. YG Entertainment formally announced in early 2009 that the group would consist of four members and debut sometime in May of that year. The company stated that the group had trained for four years, and that their debut album would contain songs produced by 1TYM's leader Teddy Park. The group's name was initially announced as "21," however, due to the discovery of a singer with the same name, the group was quickly renamed "2NE1". The name, pronounced in Korean to approximate English as "To Anyone" or (US) "Twenty One", combines the phrases "21st century" and "New Evolution".

Tracklist:
01. Fire 
02. I Don't Care 
03. In the Club 
04. Let's Go Party 
05. Pretty Boy 
06. Stay Together 
07. Lollipop (Bonus Track)