Taylor is singing with Beck and St. Vincent! #1989TourLA— Taylor Swift Updates (@TSwiftOnTour) August 26, 2015
Total aside from this chill show I'm at: I've lost a lot of respect for a shit ton of thirsty celebs this week #1978 bitch !— Edward Droste (@edwarddroste) August 26, 2015
John Legend is also there!
Source; 1 / 2 / 3
Who was the person who predicted beck would perform? looks like you were right.