TORONTO - Canadian tenor John McDermott, Glass Tiger frontman Alan Frew and classical guitarist Liona Boyd will perform at a Toronto benefit concert in support of Fort McMurray residents affected by a devastating wildfire that destroyed thousands of homes.

The musical trio will join previously announced talent including singer-songwriter Jim Cuddy at the .BackFortMac show at Roy Thomson Hall on June 27.

Other scheduled performers include comedic couple Colin Mochrie and Deb McGrath, opera star Measha Brueggergosman, country duo the Lovelocks, stage and screen star Jackie Richardson and jazz singer Matt Dusk.

Organizers say 90 per cent of the proceeds will be donated to the Canadian Red Cross Alberta Fires Appeal, supporting families and individuals impacted by the wildfires.

The remaining funds raised will be donated to the Red Cross disaster readiness program.

Cuddy and his band Blue Rodeo will also perform at the June 29 Fire Aid benefit concert in Edmonton, along with Nickelback, Corb Lund and Ian Tyson.