Dal Shabet, a South Korean girl group, were formed under Happy Face Entertainment in 2011. The six-member group-comprising Viki, Serri, Ah Young, Jiyul, Kaeun, and Subin-debuted with the EP Supa Dupa Diva, featuring six members: Their debut single "Supa Dupa Diva" marked their breakthrough moment, topping various charts during its promotional period. Dal Shabet released several successful EPs and singles in the following years. In April 2011, they released "Pink Rocket", followed by "Bling Bling" in August of the same year, which became one of their most successful tracks, reaching number 10 on the Gaon Digital Chart. In January 2012, Viki left the group and was replaced by Woohee. The group continued to release notable songs such as "Hit U", "Mr. BangBang" from their first studio album Bang Bang, and "BBB (Big Baby Baby)". In November 2015, Jiyul and Kaeun departed from Dal Shabet. The remaining members released two more EPs, Naturalness in January 2016 and Fri. Sat. Sun. in September 2016. In December 2017, Serri, Ah Young, Subin, and Woohee left Happy Face Entertainment, though the group's future activities remained undecided. Despite these changes, Dal Shabet reunited in September 2019 for a mini-concert. Seven years later, four members (Seri, Ah Young, Wohee, and Subin) made an appearance at the 2025 CassCool Festival in Gwacheon.