I-Yah is a song by WJSN, the South Korean-Chinese girl group also known as Cosmic Girls and by the Korean name 우주소녀. The title uses the Korean word 아이야, and this 17-second excerpt captures one of the track's bright vocal moments rather than the full song. Short K-pop clips like this spread through fan edits, soundboards and social videos, where listeners reuse a recognisable hook without playing an entire track. It remains in use because it is instantly tied to WJSN's polished, upbeat style and works well as a quick identifier for the group in fan-made content.