The 2009 Mnet Asian Music Awards (MAMA) was the eleventh of the annual music awards in Seoul, South Korea that took place on November 21, 2009, at the Seoul Sports Complex.

2NE1 was a South Korean girl group formed by YG Entertainment, which was active between 2009 and 2016. The group was composed of four members: Bom, CL, Dara, and Minzy. Known for breaking typical stereotypes of K-pop, musical experimentation, fashion, and stage presence, they are recognized for expanding girl group styles in the Korean music industry and have become one of the leading figures of the Korean wave.