Four K-pop stars got together to form a "Wow Thing" of a girl group, with members of Red Velvet (SEULGI), GFRIEND (SINB) and (G)I-DLE (SOYEON) joining soloist and former I.O.I member ChungHa on a single released earlier Friday (Sept. 28).

A bright, R&B-influenced pop song, "Wow Thing" puts the foursome's powerful vocals in the spotlight and showcases their dynamic through its accompanying music video, released through SM Entertainment's Station X 0 project.
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