Shawn Mendes performs "Mercy" at iHeartRadio LIVE

KIIS Presents iHeartRadio LIVE with Shawn Mendes powered by Optus, Sunday 30th October in Sydney!

Watch his performance of "Mercy" in his first EVER Australian show, above!

Don't forget you can stream Shawn Mendes on iHeartRadio data-free on your Optus mobile. Find out how here.