Probably not, as RM explained. "We don’t want to change our identity or our genuineness to get the number one,” he revealed to Entertainment Weekly about why BTS does not sing all English lyrics on any of their songs. "Like if we sing suddenly in full English, and change all these other things, then that’s not BTS. We’ll do everything, we’ll try. But if we couldn’t get number one or number five, that’s okay.” 

The K-pop group also told the outlet that sticking to their Korean roots is an important aspect in their identity as a musical group. The group was nominated for a Grammy Award this year, and though they didn’t win, their album Love Yourself: Tear, was the first-ever Korean album to be recognized by the Academy. 

Therefore, despite the lost, sticking to their roots has paid off. 

While they may only sing a few English words or phrases in their songs, that doesn’t mean they can’t speak the language. The leader of the group, RM takes the reigns during American interviews as he can speak fluent English, while the other members of BTS only speak some.