The premise of the contest was to find a musical theatre performer to play the lead role of Maria von Trapp in the 2008 Andrew Lloyd Webber and David Mirvish revival of Rodgers and Hammerstein's The Sound of Music at the Princess of Wales Theatre in Toronto.

The show performances were: Sing-Off As the mission for this week, the potential Marias had to prove how fit they are by taking part in a thorough workout.

The show performances were: Sing-Off As the mission for this week, the contestants act with the children to help separate between the potential Marias.

The show performances were: Sing-Off This week, just like the British version, the mission was a chemistry test with John Barrowman, which involved his giving the Marias a surprise kiss.

On August 14, 2008, it was announced that runner-up, Janna Polzin, had been cast as an "alternate Maria" for the Toronto stage production.