Taylor Swift & Robbie Williams Perform 'Angels' Duet at Her 'Reputation Tour' Concert in London! (Video)

Taylor Swift and special guest Robbie Williams surprise the crowd at her reputation Tour show in London, England!

The 28-year-old “Delicate” crooner and the 44-year-old English singer took the stage for an epic performance on Saturday (June 23) at Wembley Stadium.

Taylor rocked a long-sleeve black and gold dress, and Robbie sported his reputation Tour merch along with a black and red sequin and leather jacket.

Taylor started off on the piano before Robbie emerged for a duet of his 1997 hit “Angels.”

“What an honour to sing with you tonight @taylorswift I’ve got a proper crush,” Robbie shared on Instagram. “THANK YOU THANK YOU THANK YOU x.”

Taylor‘s other surprise guests on the tour have included Shawn Mendes, Selena Gomez, Troye Sivan, and most recently, Niall Horan, who shared the stage with her on Friday night in London.

Taylor will continue her tour in Louisville, Ky., next weekend.

Watch a video of the performance below!