Blackpink singers Rose and Lisa both tie BTS's Jung Kook for a historic win on BIllboard's Pop ... [+] Airplay chart with their singles "Apt." and "Moonlit Floor," respectively. INDIO, CA - APRIL ...

It may come as a surprise to listeners who were only introduced to the girls when BLACKPINK debuted in 2016, but some of them actually started working on music before they rose to K-pop infamy ...