During the teen screaming festival that took place at Madison Square Garden Friday night, there was a concert going on, too: Z100's Jingle Ball. We were there and got some quality hang time with some of our faves—fun., Ed Sheeran, The Wanted, and Cher Lloyd, to name a few. We also joined in on the screaming for a few of the other acts (#realtalk: mostly One Direction and Justin Bieber). We also learned, for about the trillionth time this year, that Taylor Swift is seriously everyone's No. 1 crush.

Not only did the girl have the entire audience on their feet during her electric performances of "I Knew You Were Trouble" and "We Are Never Ever Getting Back Together," but she also pleasantly surprised the crowd when she played alongside friends Ed Sheeran and B.o.B. She did it all in red hot pants, too, which is a feat in and of itself.

During her own set, Tay brought her pal Ed Sheeran out for their warm-and-fuzzy Red duet, "Everything Has Changed." The audience knew every word (natch) and screamed them back at the pair like they were yelling at a home intruder. After her set, Swift paused her backstage makeout session with boyfriend Harry Styles (I just made that up, don't quote me) to hop back on stage with B.o.B for their collabo, "Both of Us." No one was mad to see Taylor on stage one more time, especially B.o.B. (Again, red hot pants.)

Check out the rest of our Z100 Jingle Ball coverage, and pray along with me that you come back as Taylor Swift for your next life.