Ching Choi, formerly known as Siu Kwan, began with online fan creations, sharing music videos and short clips that attracted followers. She then started street busking with a masked persona and released her debut album a year later. She has also participated in film and TV projects, including the reality fighting show "G1 Fight Club" and the movie "The Sparring Partner." Since 2013, she has been involved in bands such as Carrier and GIMAG Band, serving as composer and lyricist, with works spanning rock, pop, and Cantopop elements. Her solo and collaborative releases include tracks like "Thought," "Dai2 Sin3," and "Smoke" and she composed the theme song "Tough Battle" for ViuTV's "G1 Fight Club." Her music combines street influences with emotional expression, addressing social issues and personal sentiments, and she remains active in Hong Kong's indie music scene.