Solar is a South Korean singer, songwriter, and actress signed under RBW. She was the leader and vocalist of girl group Mamamoo. Solar has released the extended plays COLOURS, 容 : FACE, and Gyeongseong Creature S2 with Kim Daniel and Isaac Hong. Her most popular songs include HONEY, Colors, and Spit It Out. She has appeared in the series Imaginary Cat and MAKEMATE1.