Shawn Mendes brought out Niall Horan at his show in London for a surprise duet of "This Town." "I'll remember this for a long ...

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 Brings out Surprise Guest at Concert and Fans Are Losing It originally appeared on Parade. Shawn Mendes brought ...

If the whole world were watching, Niall Horan and Shawn Mendes would still make surprise appearances at each other's concerts ...

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

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

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

Shawn Mendes Makes Surprise Appearance at Niall Horan Concert for 'Treat You Better' Duet: 'That's My Boy!' Shawn Mendes spent the earlier part of the day in Paris attending a Paris Fashion Week event ...

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.

Niall Horan's solo career may have just taken off, but he's already prepared for a pop star co-pilot. "Definitely," Mendes said when Corden asked him about the rumors. "He's awesome. I've been ...