BTS had an interview with 'Entertainment Relay', where he admitted that he was called the 'Pelé' of BTS. (Alluding to the soccer player who always made wrong predictions). He said all the songs that he thought wouldn't do well ended up doing well.
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He said, "I didn't think 'Blood, Sweat, Tears' would do well. Isn't it kind of dirty?", explaining he didn't like the title song because it was made of human secretion. He admitted, "I thought it wouldn't do well, but it did."