Music

Watch Harry Styles sing One Direction’s ‘Stockholm Syndrome’ at Niall Horan’s concert

Bandmates for life.

Harry Styles supported his fellow One Direction alum, Niall Horan, at Horan’s concert at Co-op Live in Manchester, England, on Tuesday.

Styles, 30, was seen singing and dancing in the crowd as Horan, 30, performed the One Direction song “Stockholm Syndrome” in a fan video shared on X (formerly Twitter).

Harry Styles at Niall Horan’s concert. X/hs_news_

The “Watermelon Sugar” singer wore a yellow cardigan sweater over a white T-shirt to the concert.

Fans of One Direction — which broke up in 2015 — went wild seeing the video of Styles at Horan’s show.

“WOW,” one person tweeted.

Niall Horan on “Today” in June 2023. Nathan Congleton/NBC via Getty Images

“Love this ‘H’ having a great time showing support for Niall,” another fan wrote.

“Reunion when?” a different fan asked.

One Direction at the 2012 BRIT Awards. Getty Images

Horan is currently on his The Show: Live on Tour, which kicked off in Ireland in February. His final show is scheduled for October 9 in Colombia.

The “Meltdown” singer launched his solo career after One Direction went on an indefinite hiatus following Zayn Malik’s exit from the group.

The former boy band — made up of Horan, Styles, Malik, 31, Liam Payne, 31, and Louis Tomlinson, 32 — formed under the leadership of Simon Cowell on the UK version of “The X-Factor” in 2010.

Niall Horan at the TRNSMT Festival 2023 in Glasgow, Scotland. Redferns

All five members were teenagers when the group came together.

One Direction became one of the best-selling boy bands of all time before they disbanded.

Since the breakup, Horan has released three studio albums — 2017’s “Flicker,” 2020’s “Heartbreak Weather” and 2023’s “The Show.”

One Direction at the “Harry Potter and the Deathly Hallows: Part 1” premiere. PA Images via Getty Images

But it’s Styles who has had the most successful solo career of all five 1D alums, by far.

He came out with his second solo album, “Harry’s House,” in 2022 and then went on his Love On Tour, which lasted over 22 months until July 2023.

Harry Styles performing at the 2023 BRIT Awards. AFP via Getty Images

The “As It Was” singer also starred in the films “Don’t Worry Darling” and “My Policeman.”

Despite moving on from One Direction, Styles still showed love to the band that made him famous at the 2023 BRIT Awards.

While accepting the award for British artist of the year, Styles said in his acceptance speech, “I want to thank Niall, Louis, Liam and Zayn because I wouldn’t be here without you either. Thank you so much.”

Harry Styles at the 2023 BRIT Awards in London. AFP via Getty Images

Two months later, Styles hinted at a One Direction reunion on James Corden’s final “The Late Late Show.”

“I think I would never say never to that,” he said.