In 2009, she debuted along with  YG Entertainment  label mates  Sandara Park ,  Minzy , and  Park Bom  as  2NE1 . CL has worked with  Big Bang ,  Uhm Jung Hwa , YMGA, and  Teddy Park . With 2NE1, she has released two extended plays,  2NE1  and  2NE1 2nd Mini Album ,