The group will headline 13 stadiums next spring, hitting Minneapolis, Pasadena, Vancouver, Las Vegas, Detroit, Pittsburgh, Nashville, Chicago and Cleveland.
The June event will take place at the National Bowl in Milton Keynes, U.K.
"Y'all know I hate doing this," Timberlake said in a statement on Saturday (Nov. 30).
The one-night-only show will take place on Dec. 16 in New York City.
Here's what you might not know about Swift's Eras Tour.
The singer launched her 'Brat' tour at the northern city's 23,500-capacity Co-op Live venue.
The performance also included a countrified version of the chart-topping “Pillowtalk,” plus a surprise Paolo Nutini cover.
"Do you believe me now? What a shame she went mad. Do you believe me now? They say I did something bad," Swift sang in Toronto on Friday night (Nov. 22).
Festival organizers say the typography change is a nod to Goldenvoice's punk rock roots and 40-year relationship with the band.
The tech-house DJ will top the bill at an all-day event next August.