2NE1's first song was "Lollipop", released on March 27, 2009. The song was created for LG to promote their Cyon phone, and it was a joint release with Big Bang. "Lollipop" proved to be a strong chart hit, going to #1 on various online charts and topping music television network M.Net's online chart for four weeks in a row.
2NE1's debut song titled "Fire" was released as on May 6, with two versions of the music video — a "space" version and a "street" version. The videos received over one million views in a day; the viewcount then increased to two million. The group's first performance of the song was on May 17, 2009, on SBS's Inkigayo.
On July 1, the group released the title of a song out of their first mini-album called "I Don't Care" online. "I Don't Care" is a reggae R&B ballad, co-produced by YG producers Teddy and Kush. After its digital release, interest in the song rose greatly, topping Cyworld's hourly music chart after an hour of its release. Besides "I Don't Care", there are 4 other new songs featured on the mini album.
Source: Wikipedia.org



















