Deekay wrote for what South Korean girl group formed by S.M. Entertainment?
Deekay Deekay is a Danish production and songwriting team founded by Lars Halvor Jensen, Martin Michael Larsson with other members Tim "Data" McEwan, Daniel "Obi" Klein and Johannes "Josh" Jørgensen. The name Deekay comes from the acronym dk, which means Denmark. Deekay have written and produced for artists like Jason Derulo, Jordin Sparks, Lil Wayne, Diddy, Sugababes, Orianthi, JLS, Tinie Tempah, Charice, Allison Iraheta, Method Man, Fat Joe, Styles P, Lemar, Medina, Girls' Generation, Red Velvet, LOOΠΔ, EXO and others.
Psy Park Jae-sang (Hangul: 박재상 ; Hanja: 朴載相 ; born December 31, 1977), known professionally as Psy (싸이 ; ; ] ), stylized PSY, is a South Korean singer, rapper, songwriter, and record producer. Psy is known domestically for his humorous videos and stage performances, and internationally for his hit single "Gangnam Style". The song's refrain was entered into "The Yale Book of Quotations" as one of the most famous quotations of 2012.