WATCH: Shawn Mendes And Ed Sheeran Sing “Mercy” Kingston, ON, Canada / 104.3 Fresh Radio MK August 17, 2017 11:49 am This is a dream come true! Ed Sheeran decided to help Shawn Mendes out at his concert in New York, by singing Shawn’s hit ‘Mercy’ with him! Check it out: HAVE MERCY. @edsheeran IS HERE. @ShawnMendes #ShawnBKLYN #IlluminateWorldTour pic.twitter.com/XBDrSbELdK — Barclays Center (@barclayscenter) August 17, 2017 Follow us on Twitter! Find us on Facebook!