Here's what went down during her performance:
Jack Antonoff joined her on stage.
Earlier in the night Jack accepted Tays "Best Pop Vocal Album" win on her behalf.
Adele sang along from front row.
Sitting next to Ed Sheeran because obvi.
Taylor ditched her signature red lip.Getty
We are ALL about this pink.
She updated her body suit.Getty
That slit though. YAASS, girl, yaass!
The tour bracelets were REVIVED.
One of the most magical aspects of the 1989 World Tour was present among the Grammy audience.
And of course, her signature smirk to the crowd.CBS