"Dynamite," the first-ever all-English single by Big Hit/Columbia's K-Pop sensations BTS, is on the verge of having the biggest first-day numbers ever at Spotify—and, indeed, the biggest first day overall. Ron Perry is hitting his refresh button constantly as the numbers climb. The cut had amassed 9.8m streams on the Spot early in the day on 8/21 and looked a cinch to pass Ed Sheeran/Justin Bieber's "I Don't Care" (just south of 11m) and Mariah Carey's "All I Want for Christmas" (12m+ on Ch