By Vidhi Choudhary Brands associated with South Korean music sensation BTS have reason to cheer. A wildly successful South Korean music group is bringing brighter days to its fans and corporate partners. “What is important are the choices we make when we’re faced with change,” said members of music’s billion dollar boy band BTS, short for their Korean name Bangtan Sonyeondan, or which they adapt in English to “Beyond the Scene,” at the United Nations General Assembly in September, last year. The band was addressing future generations and young people across the world and has clearly become the…