Babymonster hit 12 million subscribers on YouTube as of Sunday, surpassing the milestone in the fastest time since debut for a K-pop girl group, at two years and two months, label YG Entertainment said Monday. The group of seven has the third most subscribers among K-pop girl groups, only after Blackpink and Twice. The music video for “Choom,” the title track of its third EP, added momentum, drawing 15 million hits in half a day and heading straight to the top of YouTube's worldwide trending cha