Together, BTS members performed at the Grammy Awards, the Billboard Music Awards, and sold millions of albums. When they started out, however, most of the members were considerably young.

"Please wait just a little longer and we will return with a really cool performance," V, 29, told reporters and fans outside a military base in South Korea.

These K-pop idols are more than just talented performers. Here's what we know about BTS' time in high school, including the youngest member, Jungkook.

Get to know BTS' seven members: RM, Jin, Suga, J-Hope, Jimin, V and Jungkook BTS has taken the world by storm. Since their debut in 2013, the South Korean boy band, whose name is an acronym for ...