Even after his massive solo success and a long list of standout moments on BTS songs, at age 28, Jeon Jung Kook hasn't yet quite figured out who he is. "I'm still forming my sense of self," he says.

With BTS being one of the biggest musical acts in the world, it's hard to imagine that anyone could leave the members starstruck. But on the Elvis Duran Show, a few of them revealed which celebrities ...