Chrystal, NOTION is a South Korean singer-songwriter and electronic pop artist associated with the contemporary K-pop and electronic music scenes. Emerging in the 2010s, her work blends synth-driven production with melodic pop songwriting, incorporating elements of R&B and dance music. Her music is characterized by polished electronic arrangements, emotive vocal delivery, and a focus on atmospheric textures and hooks suited to both mainstream and indie electronic contexts. As a recording and performing artist, she has participated in collaborations typical of modern South Korean pop production.