Sanna, Alex, Ash and Kas have been listening to BTS for a really really long time. Specific since 2013, when their first album came out. But the sad thing is that Sanna and Alex live in Sweden while Kas and Ash live in USA, all four have NEVER been to a BTS concert, and when BTS where at Stockholm Sanna and Alex were really sick, and Ash and Kas were out of country when they were in USA. It's like the universe doesn't want them to meet them and each other, but they had other plans.