But there were other, subtler moments that you may have missed if you glanced away.
One of them featured Taylor Swift rocking out to her own music ... as Kelly Clarkson performed it.
Kelly Clarkson has one hell of a voice, and she performed a medley of some of 2017's biggest hits.
One of those hits, as you can see and hear in the video that we've included, is Taylor's epic revenge song: "Look What You Made Me Do."
Taylor released the song as the single that led up to Reputation dropping.
The song itself parodies how she has been portrayed while also promising revenge against a number of her enemies.
Notably, she had been feuding with Kim Kardashian, Kanye West, and with Katy Perry.
When Kelly began singing Taylor's lyrics, Taylor couldn't help but sing along.
Taylor was situated in the audience between teen heartthrob Shawn Mendes and 21-year-old heartthrob Camla Cabello.
(Which pretty much makes Taylor the envy of the entire world, doesn't it?)
In the video, we see Taylor mouth the lyrics while also posing -- she can't help but know that the camera will be on her while Kelly is singing her words.
She quickly loses her composure and bursts into laughter, however.
She was clearly enjoying her time at the awards show. And why shouldn't she? She had the best-selling album of all of 2017.
Taylor was clearly living her best life.
She was practically joined at the hip with the beautiful Camila Cabello, with whom she has also recently performed during her massive concert tour for Reputation.
Now, being good buddies is all well and good, and we're glad that Taylor was able to enjoy the music.
But she may have enjoyed some of the music a little too much.
See, when teen singing sensation Shawn Mendes took to the stage to perform "In My Blood," Taylor and Camila could not contain their enthusiasm.
A number of people -- and their cameras -- notice the two were standing to sway and dance to Shawn's music.
Most notably ... Darren Criss.
Criss recorded the humorous moment on his phone, saying "excuse me, miss" in a polite and certainly too-quiet-to-be-heard tone while showing that Taylor and Camila were obstructing his view.
He wanted to enjoy Shawn's performance.
Probably because he has two ears and a heart.
Some fans asked why he didn't also stand, but that would have been passing along the buck and essentially forcing the entire audience to stand.
That's no fun.
But Taylor and Camila enjoyed their friend's singing. That's what matters.
Some artists get very touchy about covers by other artists.
Clearly, Taylor enjoyed Kelly Clarkson's inclusion of her lyrics.
No medley of 2017 hits would feel right without Taylor's music, and what better choice than her epic single that promised revenge on her enemies.
They say that success is the best revenge, so she's already making good on that promise.