Taylor Swift is known for having surprise guests perform with her during her shows, and last night's concert was no exception. The singer welcomed her good friend Ellie Goulding to the stage during her last show at the O2 Arena in London, and the girls sang Ellie's hit song "Burn."
The performance was packed full of classic Taylor dance moves, and a couple news ones as well. From hair flips to hip thrusts, it looks like the girls had a blast performing together.
Check out the video below, then let us know what you think. Do you think it bothers Ed Sheeran that Taylor is friends with his ex?