Watch Taylor Swift and James Taylor perform together at his Tanglewood concert.
Roxy Olin Twitter
One of the coolest things about a Taylor Swift concert is seeing what special guest she'll share the stage with.
At James Taylor's Tanglewood, Massachusetts show last night, Taylor returned the favor by joining him on stage.
Taylor tweeted: "Just had the honor of performing with James Taylor to a sold out crowd in MA. We sang Fire and Rain, Ours, and Love Story. Pics/videos soon!"
Last year, Taylor and James did a duet on the final night of her tour at Madison Square Garden, so it's been done before... but it's still pretty magical to see them perform together.
Taylor joined James at the end of his first set to sing Fire and Rain and then returned during the second set to sing Ours and Love Story.
It's always awesome to see them together!