Just four months after their debut (首次亮相), South Korean girl band Fifty Fifty has rewritten the history of K-pop. Their hit Cupid entered the Billboard Hot 100 chart and its ranking continued rising in April. This achievement marked a significant milestone for the K-pop world by entering the list within the shortest time. According to the Allkpop website, the song gained popularity overseas for its combination of minimal disco (迷你迪斯科) beat with a retro-style sensibility (复古感受力).