The group MamaMOO is performing at the MBC Music 'Show Champion' on the afternoon of the 20th at MBC Dream Center in Goyang City, Gyeonggi Province.
About MAMAMOO
Mamamoo is a South Korean girl group formed by RBW in 2014, composed of four members: Solar, Moonbyul, Wheein, and Hwasa. The group officially debuted with their single "Mr. Ambiguous" on June 18, 2014.
 Wikipedia