Watermelon SUGA is a joke that BTS made when they were asked "What was the last song you got stuck your your head?" the began singning Watermelon Sugar High-Harry Syles. It was funny because one of the memebers stage name is "SUGA" so then they started saying. "Korean SUGA hi" "BTS SUGA hi"
(No i did not make a typo i did mean to write "Hi" because SUGA starts waving when they sing.
"Watermelon SUGA is the funneist side of SUGA"
Mang is a character of the BT21 universe. He was created by BTS member Jung Hoseok better known as J-hope of Hobi. Mang loves dancing just like Hobi. He wears a blue mask over his head because he is shy.
OMG Mang is SOOOOO cute!!!!!!!!!!!!!!!!!!!