The biggest stars in the pop music universe -- One Direction, Taylor Swift, Justin Bieber and more -- came out to Madison Square Garden on Friday for the Jingle Ball, Z100's annual holiday extravaganza. Between stellar performances and unexpected collaboration from the show's 11 acts (nearly half of which hailed from Britain), an adorable Haylor sighting, and some major 1D/Wanted drama, it was definitely a night to remember. HuffPost Teen was there in the audience at Madison Square Garden, and in case you missed it, we've compiled eight of the best moments from this year's Jingle Ball.
1. When One Direction made their second appearance At MSG in one week.
The guys followed up their Madison Square Garden debut on Monday by opening the Jingle Ball with a crowd-pleasing performance of "Live While We're Young" -- and a killer pyrotechnics display during "What Makes You Beautiful."
2. When Haylor had an adorable moment backstage...
And later left Madison Square Garden together. But we were even more excited when an equally adorable pair -- Taylor Swift and Ed Sheeran (Edaylor?) -- came together to perform "Everything Has Changed" together for the first time. Check out the video:
3. When The Wanted danced onstage with a little girl from the audience.
Her name was Annie, and she rocked out with Max George.
4. When Jason Mraz sang "Walking In A Winter Wonderland"
... As it snowed glitter over Madison Square Garden. Magical. But still not as awesome as his "Empire State of Mind" duet with Ed Sheeran.
5. When Ed Sheeran, wearing a Santa hat, performed "A Team" for the first time since his Grammy nom
With the entire stadium joining in: "White lips, pale face, breathing in snowflakes..."
6. When the entire audience came together to do their best Cher Lloyd grunt.
Led by none other than Brigit Mendler.
7. When The Wanted/1D feud got heated...
The Wanted claims that they would get arrested if the tiff continues, and Max performs in a T-shirt that reads, "You mad, Bro?"
8. When Biebs brought out the misteltoe -- and his guns.
Not real misteltoe, to the dismay of his many fans in the audience, but Bieber got the crowd in the holiday spirit with a performance of his now-classic holiday single, "Misteltoe." Oh, and this:
Click through the slideshow below for photos from the show, and tell us: What was your favorite Jingle Ball moment? Share your thoughts in the comments below or tweet @HuffPostTeen!