2NE1 is a South Korean girl group formed by YG Entertainment in 2009, known for hits like Fire and I Am the Best and a bold, electronic pop sound. As live streaming grew on platforms like Twitch, creators began borrowing short music stings from favorite artists for follower notifications, turning a system alert into a fandom signal. This 2NE1 follow alert fits that trend, using a brief pop hit listeners recognize instantly. It remains popular with K-pop fans who want their channel branding to feel personal, energetic and tied to a group with lasting online influence.