Star to a Young Culture

On October 11, High Up Entertainment announced that their first ever girl group "STAYC" would be debuting on November 12, 2020.^[3] All members of the group were announced between September 8 and October 22. The title of their single album was announced to be Star To A Young Culture, with the lead single "So Bad".^[2] The teaser schedule was released the same day. The album was announced to be produced by Black Eyed Pilseung and the duo described the group's sound as "Teen Fresh", a combination of "Teen" and "Fresh", highlighting the group's "unique individual vocal colors".^[4]

To promote the album the group performed their lead single "So Bad" and B-side "Like This" through a VLIVE debut showcase.^[5] The group made their music show debut on November 13, 2020, at KBS Music Bank,^{[citation needed]} which was followed up with performances at Show Champion, Inkigayo, and The Show.

"So Bad" was released as the lead single and title alongside the EP on November 12, 2020. The music video for the song received over 2.6 million views in the first 24 hours.^{[citation needed]} The song debuted at number 90 on Billboard's K-pop Hot 100 later peaking at number 82, and number 21 on the World Digital Song Sales chart.^[6] The song also peaked at number 159 on the Korean Gaon Digital Chart.

The EP sold over 4,300 copies on its first day, the most for a girl group that made their debut in 2020.^{[citation needed]} It went on to sell more than 10,000 copies on its first week, becoming the first debut album by a girl group in 2020 to do so.^[7] After debuting at number 17 the EP went on to peak at number 6 on the Korean Gaon Album Chart. The group also managed to get more than 30 thousand streams and more than 10 thousand unique listeners on Genie Music.