Roots of K/DA

Kim Petras is a German singer and songwriter based in Los Angeles. After attracting international attention for transitioning as a teenager, she released her debut EP, One Piece of Tape (2011), and wrote tracks for Fergie, JoJo, Skylar Simone, and Twice. In August 2017, Petras released her debut single "I Don't Want It at All", followed by the single "Heart to Break" (2018), which charted at No. 52 on Billboard's Dance Club Songs chart. She followed this with her second EP, Turn Off the Light, Vol. 1 (2018), the mixtapes Clarity and Turn Off the Light, and the single "How It's Done" (2019); the last of these featured on the soundtrack of Charlie's Angels. A further track with Kygo, "Broken Glass" (2020), charted at No. 13 on Billboard's Dance/Electronic Songs chart.

I-dle, formerly known as (G)I-dle, is a South Korean girl group formed by Cube Entertainment in 2018. The group consists of five members: Miyeon, Minnie, Soyeon, Yuqi, and Shuhua. Originally a sextet ensemble, member Soojin departed the group on August 14, 2021. They are praised for their musicality, versatility, and for breaking stereotypes as a "self-producing" idol group, known for writing and producing much of their material. Since their debut, they have been described as one of the most successful South Korean girl groups outside of the "big four" record labels.