Last year, Mendes made a surprise appearance to perform "Treat You Better" during Horan's headlining show in London ...

On Saturday, Aug. 16, Shawn Mendes surprised the audience at his show in London when he brought out Horan to duet the former ...

Shawn Mendes had a very special treat up his sleeve for fans at his O2 Arena show in London on Saturday night (Aug. 16). The ...

Shawn Mendes brought out a very special guest at his show in London. On Aug. 16, the "Treat You Better" singer, 27, surprised ...

Shawn Mendes is reflecting on his duet performance with One Direction’s Niall Horan in London.The 27-year-old singer, who ...

Fans were stunned as Niall Horan appeared at Shawn Mendes’ London O2 show to perform ‘This Town’ together live.

Shawn Mendes invited former One Direction singer Niall Horan to join him for a surprise duet of Horan's debut solo single ...

Shawn Mendes left fans flabbergasted when he invited One Direction singer Niall Horan to his London gig. The 27-year-old has ...

It’s impossible not to get excited when Niall Horan and Shawn Mendes share the stage!During the thrilling London concert of ...

The Irish pop star and boyband heartthrob hasn’t performed live in 10 months, having wrapped up his The Show world tour in ...

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

Shawn Mendes and Niall Horan's respective singles, Mercy and This Town, shot up the Billboard Hot 100 chart to land in the Top 20 for the first time.