2NE1 (also known as 2NE1 2nd Mini Album) is the second eponymous extended play by South Korean girl group 2NE1. It was released digitally and physically on July 28, 2011, by YG Entertainment and was distributed by KMP Holdings. It contains six songs composed and produced by Teddy Park and Kush; five of them were released as digital singles. "Don't Stop the Music" was initially released as the Yamaha Fiore CF Theme Song in late 2010. A Japanese version of the mini-album, titled Nolza, was released by YGEX on September 21, 2011. Both versions of the extended play experienced commercial success, achieving number one on both the weekly and monthly Gaon Album Charts in South Korea as well topping the Oricon Albums Chart in Japan. Four of its singles—"Don't Cry", "Lonely", "I Am the Best", "Ugly"—each claimed the number one position on the Gaon Digital Chart, making 2NE1 the first group to have four number-one songs from the same album. The mini-album won the Album of the Year award at the 2011 Melon Music Awards, while "I Am the Best" won Song of the Year at the 2011 Mnet Asian Music Awards in addition to the group's second accolade from the Korean Music Awards. Development and background On April 18, 2011, 2NE1 announced they would postpone their Japanese debut due to the 2011 Tōhoku earthquake and tsunami and would resume Korean release plans, pushing the extended play's promotions forward, from April to July. Plans for the album's promotions were later released on YG Life's blog on April 27, 2011, where the group stated that they we will be releasing a new single every three weeks leading up to the album's release in July. The group stated that the reason behind this plan was because they were more than satisfied with the level of quality in the album's track list and intended to use them all as title tracks for its promotion. Promotion and release Bom's solo track "Don't Cry" was released as the first single on April 21. It was then followed by the group's single "Lonely" on May 11. Both songs topped the Gaon Digital Chart; in addition, "Lonely" became the first song to achieve a perfect all-kill by a K-pop girl group since the concept's inception in 2010. Neither were promoted extensively on music shows; but on May 29, the group made a surprise two-part performance with both