Niall Horan Calls Shawn Mendes a 'Top Lad'

It looks like Niall Horan and Shawn Mendes are becoming really good friends!

The 23-year-old “This Town” singer took to Instagram to share a new photo with the 18-year-old Canadian crooner.

PHOTOS: Check out the latest pics of Niall Horan

“Me and the boy ! Top lad . No idea why my sunglasses are on my shirt . @shawnmendes,” Niall captioned the photo.

In case you missed it, the duo recently did a killer duet of Shawn‘s hit song “Mercy”!

Both guys have expressed interest in writing songs together, so we can’t wait to see if they get into the studio together soon!