Shawn Mendes Pulls Double Performance Duty in London

Shawn Mendes belts out his song “Mercy” while performing on The X Factor on Sunday evening (October 23) in London, England.

“That was unreal. Was so nervous, had the best time. So amazing! Thank you @TheXFactor,” the 18-year-old singer wrote on Twitter after his performance.

Earlier in the day, he performed his song “Treat You Better” on the BBC Radio 1 Teen Awards. Check out a snippet below!

Shawn won two awards at the show, Best Single and Best International Solo Artist. Congrats Shawn!

Also pictured inside: Shawn leaving the NRJ Studios on Friday (October 21) in Paris, France.

15+ pictures inside of Shawn Mendes performing…