Taylor and Cher teamed up on "Want U Back". The performance was caught on a fan cam.
In other Taylor news, the singer whipped up some homemade jam for her good friend and tourmate Ed Sheeran.
Ed posted a photo of the handwritten label on the jam on Instagram
writing, "Taylor made me some jam. Amazing."
But it was the message on the label that really got people talking, as Taylor was referencing Kanye West when he famously interrupted her acceptance speech at the MTV Music Awards a few years ago. The label reads, "Yo Ed - I'm really happy 4 you and I'm gonna let u finish but this is the best JAM OF ALL TIME. - T."