K/DA is a virtual K-pop girl group consisting of four themed versions of League of Legends characters Ahri, Akali, Evelynn and Kai'Sa. Evelynn and Kai'Sa are voiced by American singers Madison Beer and Jaira Burns respectively, while Ahri and Akali are voiced by (G)I-dle members Miyeon and Soyeon. K/DA was developed by Riot Games, the company behind League of Legends, and unveiled at the 2018 League of Legends World Championship with an augmented reality live performance of their first and only song, "Pop/Stars". A music video of the song uploaded to YouTube subsequently went viral, surpassing 100 million views in one month, and reaching over 250 million views, as well as topping Billboard's World Digital Song Sales chart.