BTS is taking the American music scene by storm. The seven-member boy band from South Korea has had three No. 1 albums on the Billboard chart. The music video for their single, "Boy with Luv," broke YouTube's record for the most views in 24 hours. And the group just wrapped up a six-stop U.S. stadium tour that raked in $44 million and attracted nearly 300,000 fans, according to Billboard.