1. Taylor Swift opened the show and slayed, but the beginning audio was messed up:

Kevin Winter / Getty Images
For an opening performance this is terrible audio wow, or can she really just not sing 😏 #AMAs
Is it me or has audio grown to suck on these awards shows? I can barely hear the performers when they’re on over the screams. #AMAs
2. Camila Cabello almost fell walking up the stairs:
ABC
3. The camera man seemed to have screwed up during Mariah Carey's performance:
Mariah's vocals had the cameras shaking. Literally. Skinny legends only #AMAs
4. Macaulay Culkin presented (and did the most on the carpet) and people were like??????

ABC
Wait, why is Macaulay Culkin here??? #AMAs
5. Billy Eichner, during his speech about voting in the midterm elections, said this about Shawn Mendes, who's Canadian:

ABC
6. People said Carrie Underwood kept looking less-than-impressed when the camera panned to her:

ABC
#AMAslive Carrie Underwood looks grossly unhappy, as usual, pretend-but-not-really-dancing in the crowd..
7. Rivals Mariah Carey and Jennifer Lopez showed up wearing the same color and sat across the aisle from each other👀👀👀:

Frederick M. Brown / Frazer Harrison / Getty Images
8. Post Malone messed up lip synching (allegedly):
ABC, Twitter: @search
9. A reporter asked NCT127 this awkward-ish question
The interviewer was asking nct if they were gonna bring dates and THEIR REACTIONS I’m crYing- nice save Jaehyun #AMAs https://t.co/BEASuLdkOb
10. And it looks like one of the members got annoyed at having to re-film something on the carpet.
he bout to throw hands #NCT127_RedCarpet #AMAs
11. Taylor Swift had an awkward hug with Amandla Stenberg.
ABC
12. And finally, Taran Killam and Leighton Meester had to cut their skit short because the show was running long:

NBC