Taylor Swift Surprises Fans With Special Guest Onstage at London Eras Tour

Taylor Swift fans are reeling from the major surprise she had up her sleeve at the first of this week's Eras Tour shows in London.

While kicking off her five-show run in the capital city on Thursday, Aug. 15, the "Anti-Hero" songstress brought out some local talent to surprise the audience with a moment they will never forget.

It was during the acoustic section of the show that Swift brought out none other than Ed Sheeran to help her sing their duet "Everything Has Changed" from Swift's Red album.

But it only got better, as they also mashed the song with another one of their famous collaborations, this time with Swift's "End Game" from the album Reputation.

As if that wasn't enough, they then played one of the English singer's famous songs, "Thinking Out Loud," leaving fans literally "SCREAMING" over the incredible surprise, at least according to one user on X (formerly Twitter).

"Now that's the surprise we've been waiting for," another fan exclaimed online.

Swift, 34, had some kind words to say about Sheeran, a longtime collaborator and friend to the "Cruel Summer" songstress.

"This is one of my best friends in the world to the point where I feel like he's a second brother of mine," she gushed about the "Shape of You" singer.

"We toured together on the Red Tour," she went on to say, adding, "Every time I am doing the Red part of this show, I think of the memories that we've made and now he is someone who plays Wembley like every week.

"This is regular for him and he works so hard," Swift further hyped up her friend. She continued, "He's on tour right now, and he's probably so tired but he wanted to come play for you and do this for all of us so give it up for Ed Sheeran."

After Sheeran left the stage, Swift went on to play more surprise songs on the piano, where she combined Reputation's "King of My Heart" with "The Alchemy" off of The Tortured Poets Department.

It's safe to say Thursday night's show is going to be a tough act to follow–and Swift still has four remaining Eras Tour shows to perform at Wembley Stadium.

Next: Taylor Swift Mural in London Leaves Fans Divided Ahead of City’s Final Eras Tour Shows