Ugly Duck (어글리 덕), born Sun Ju-kyung (선주경) is a South Korean rapper who debuted under AOMG in 2015.
As lead artist
- "C.U.I.O" with Dok2, Skyzoo, Samuel Seo, High Flies (2013)
- "The Ugly Junction" (누워서 떡 먹기) with DJ Wegun (2016)
- "Sugar (Puff Daehee Mix)" with Chloe DeVita (2018)