aespa is a K-Pop group with a unique concept, as each member has a correlating avatar in the virtual world. aespa, a combination of ae, which stands for Avatar and Experience and aspect meaning two-sidedness, symbolizes meeting of another self and experiencing a new world and consists of four real members KARINA, WINTER, GISELLE, and NINGNING along with avatar members of each.

The group debuted in November 2020 with a single Black Mamba. The song entered the Billboard Global Chart (excluding U.S.) at No. 100 within just 3 days, marking the highest ranking of any K-pop artists debut song. It charted across music charts in 95 countries, proving their explosive popularity immediately upon debut. aespa set monumental records with Black Mamba surpassing 21 million views in the first 24 hours of its release, and became the fastest debut MV to surpass 100 million views in the history of K-pop, setting another new record.

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