阿肆 (A Si)

阿肆 (A Si) is a Chinese singer-songwriter who built her reputation as an independent, self-produced artist writing intimate, melodically rich pop songs. She first drew wide attention with «热爱105°C的你» («Re Ai 105°C De Ni»), a warm, encouraging pop ballad about staying true to oneself that became a long-running favorite in China's independent pop scene.

The song found an entirely new audience years after its release when a slowed-down, pitch-altered remix went viral on short-video platforms under the nickname «Super Idol», turning it into a global internet meme and one of the most recognizable Chinese pop melodies internationally, spawning countless covers and parody versions across multiple languages, including a Filipino version. Beyond this unexpected viral moment, A Si's catalog includes tender, diary-like songs such as «别告诉妈妈我失恋了» and «世界上的另一个我», which showcase her gentle vocal delivery and conversational songwriting style.

A Si is generally regarded as part of China's wave of singer-songwriters who emerged through online platforms rather than traditional label systems, favoring emotionally direct, piano- and guitar-based pop over heavily produced mainstream sounds.