Deekay wrote for what South Korean girl group formed by S.M. Entertainment?
Red Velvet (band) Red Velvet (Hangul: 레드벨벳) is a South Korean girl group formed by S.M. Entertainment. The group debuted on August 1, 2014, with their digital single "Happiness" and with four members: Irene, Seulgi, Wendy and Joy. In March 2015, Red Velvet added a fifth member, Yeri, to the group.
Mighty Mouth Mighty Mouth (Korean: 마이티 마우스 ) is a South Korean duet male group made up of Sangchu (Korean: 상추 ) and Shorry J (Korean: 쇼리 J ). Debuted in 2008 with their "Energy" album featuring Yoon Eun Hye for "I love you", Sunye of the Wonder Girls for "Energy" and Son Dambi for "Family".