Taylor Swift just performed live for the first time in months!

The Grammy winner is currently in Nashville to support Travis Kelce during TEU (Tight End University), and showed up at the Brooklyn Bowl for the Tight Ends & Friends concert—where she stepped on stage and sang her 2014 mega-hit "Shake It Off."

"We would like to dedicate this to our favorite players who are going to play and these are the tight ends," Tay said, before launching into the song as the crowd lost their minds.

Oh, and she was introduced by Kane Brown, who told the audience that he was bringing out a "really, really, really special guest" before Tay walked over and said "Theoretically, how loud can we get?"

Here's Travis's POV which is very sweet:

^ Psst: Taylor is wearing EB Denim's Polka Dress in vintage black, but it's sadly sold out.

A source told People of the appearance, "Taylor surprised the crowd by joining Kane Brown onstage for ‘Shake It Off.’ The crowd lost their minds! At the end of her performance she made sure to thank the band and gave each one of them a hug."

The insider also said that when Travis and Taylor arrived at the event "they made their way upstairs there they chatted with the TEU athletes and guests. Travis and Taylor stayed by each other’s side all while chit chatting and catching up with everyone."

FYI, if you're still confused about the Tight End University of it all, turns out TEU is a three day training program co-founded by Travis where—according to Complex— "attendees are able to bond, collaborate with, and learn amongst their peers while participating in a variety of activities including film study, on-field drills, recovery, rehabilitation, and more."