3. They came through with a mind-blowing performance of their own.
Fans were crying in the audience while BTS performed. And sure, some of that can be chalked up to the group having some of the world's most passionate fans -- shout out to ARMY! -- but anyone who witnessed their "DNA" performance and didn't become a believer is either a liar or very, very, very wrong.
Their choreography was perfectly on point and the dazzling effects were astounding. Truly, K-Pop couldn't have had a better introduction to the AMAs than that. (Oh, and take note of the aforementioned jackets they wore!)