SBS MTV The Show live broadcast was held at SBS Prism Tower in Sangam-dong, Seoul on the afternoon of the 4th
MAMAMOO Wheein, Hwasa is the first place be surprised by the announcement.
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