One Direction star surprises fans at sell-out London show as he joins Shawn Mendes on stage as special guest

ONE Direction star Nial Horan surprised fans by appearing on stage with Shawn Mendes at his sell-out London show.

Last night, Grammy-nominated singer/songwriter Shawn described him as a brother as he introduced his special guest at the O2.

Shawn Mendes and Niall Horan performing on stage with acoustic guitars.

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One Direction star Niall Horan joined Shawn Mendes on stageCredit: Thomas Falcone
Shawn Mendes and Niall Horan performing on stage.

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The Grammy-nominated star described Niall as being like a brotherCredit: Thomas Falcone

Opening his On The Road Again tour with his chart-topping single There’s Nothing Holdin’ Me Back, Mendes took the audience through a setlist that traced his journey from his 2015 debut to his latest critically acclaimed album, Shawn.

The performance showcased his extensive hits, fan favorite album cuts and deep connection with his audience who sang along to every word.

Speaking on stage, Shawn said “It’s been a long time! My legs are literally shaking right now.

“I don’t remember the last time you made my knees shake. You guys got me!”

READ MORE ON SHAWN MENDES

Introducing ‘Isn’t That Enough’, Shawn said: “A year and half ago I wrote the album and self-titled it Shawn.

“This music was kind of a journey and discovery back to the reason I started making music in the first place.

“This next song was the moment I remember how much I truly love to sit in a room and play guitar and sing, and it changed the trajectory for me.” 

While performing a career-spanning set, Shawn welcomed Nial as his surprise special guest to perform This Town’.

Shawn said: “I met this fella years and years ago, I was probably 16 or 17.

“I came into this industry and I was terrified of everything and everyone.

Heartbroken Shawn Mendes stops live concert to pay tribute to Liam Payne after his ‘completely devastating’ death

“We talk a lot of s**t but this man has been an older brother to me.

“I love him with all my heart, please welcome Niall Horan.”

On The Road Again wraps its European leg on August 31 at Germany’s Superbloom Festival, before heading to North America in September and October for a run of sold out Arena and Amphitheatre headline shows.

Shawn Mendes playing guitar on stage.

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Shawn has officially begun his On The Road Again tourCredit: Thomas Falcone

Shawn Mendes: On The Road Again Routing

Find all tour dates below:

August 20, 2025 – Amsterdam, Netherlands – Ziggo Dome

August 22, 2025 – Zürich, Switzerland – Zürich Openair*

August 26, 2025 – Madrid, Spain – Movistar Arena

August 28, 2025 – Lisbon, Portugal – MEO Arena

August 31, 2025 – Munich, Germany – Superbloom Festival*

September 25, 2025 – Boston, MA – TD Garden

September 28, 2025 – Toronto, ON – Budweiser Stage

October 1, 2025 – Montréal, QC – Bell Centre

October 3, 2025 – New York, NY – Forest Hills Stadium

October 8 – Chicago, IL – Huntington Bank Pavilion

October 12 – Vancouver, BC – Rogers Arena

October 14 – San Francisco, CA – Frost Amphitheatre

October 17 – Los Angeles, CA – Hollywood Bowl

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