Harry Styles Surprises Love On Tour Attendees With One Direction Song

Harry Styles hyped fans by performing a One Direction song when he resumed his Love On Tour.

On Saturday, Styles officially began his Love On Tour European leg in Horsens Denmark. He previously completed his Asian leg, which ended in Tokyo on March 25.

The "As It Was" singer will then visit several countries until July 22, including Spain, Germany, England, France, and Italy.

Harry Styles Performs One Direction Show During Love On Tour Show

During his Saturday performance, Styles officially returned on the Night 1 of his show in Denmark. The 19-song set became more memorable for the attendees as it included One Direction's "Stockholm Syndrome."

Videos and photos of his performance dominated Twitter, as fans immediately noticed the change in the setlist.

One Direction released the track as part of its 2014 album, "Four," which ranked 200^th on Billboard's 200 Greatest Albums of the 2010s.

See Harry Styles' Love On Tour Denmark stop's full setlist below:

1. Daydreaming

2. Golden

3. Adore You

4. Keep Driving

5. Stockholm Syndrome

6. She

7. Matilda

8. Satellite

9. Late Night Talking

10. Cinema

11. Music For A Sushi Restaurant

12. Treat People With Kindness

13. What Makes You Beautiful

14. Grapejuice

15. Watermelon Sugar

16. Fine Line

17. Sign Of The Times

18. As It Was

19. Kiwi

Harry Styles' Love On Tour currently ranks 10^th on the highest-grossing tour of all time, according to Forbes. Meanwhile, Billboard reported that the ongoing tour had already earned $400 million in ticket sales, allowing him to join other A-listers on the list including Elton John, U2, Ed Sheeran, and Guns N' Roses.

Is One Direction Reunion Happening?

Styles' recent move to cover a One Direction song came weeks after The Mirror reported that the boy band would make a surprise appearance on James Corden's "Late Late Show" on April 27. However, the show addressed the rumors saying that the story was not true.

Meanwhile, Styles still gave fans hoped when he told Corden on the final episode of his show that he would never say never to that.

"If there was a time when we wanted to do it, I don't see why we wouldn't," he went on.

Corden celebrated his answer and said he would take it as a yes.

Styles also talked about the potential reunion during an appearance on the Spout Podcast, during which he said he would love to do it "right away" if they would be given a chance to do so.