And perhaps Fallon owed it to BTS and ARMY to go over the top with his praise. The Tonight Show stirred up some controversy before Wednesday night's episode even aired. The warm-up act delivered a joke that some BTS fans deemed inappropriate, leading to backlash on social media targeting the Tonight Show.

BTS The Comeback Live: Arirang is now streaming on Netflix, so if you've got a Netflix account, you can watch the set from Gwanghwamun, outside Seoul's Gyeongbokgung Palace, which includes BTS's first-ever live performances of songs from Arirang.

BTS fans, known as ARMY, express outrage over an alleged racist remark during their appearance on The Tonight Show Starring Jimmy Fallon, sparking a debate on cultural sensitivity and representation in Western media.

A fresh controversy around popular K-pop band BTS ignites as their return to American television was marked by a xenophobic remark on Jimmy Fallon's 'The Tonight Show'.

Director Bao Nguyen and producer Jane Cha Cutler talk to Vanity Fair about the making of their new documentary, ‘BTS: The Return.’