The 11 O'clock Number is Grindstone Theatre's improvised musical that has been selling out weekly shows in Edmonton since 2012.

Over the past 13 years the show has toured across Alberta and to Festivals across Canada and the US including the New York Musical Improv Festival. The show has garnered five star reviews and won awards such as Best Improv Show in Victoria and Best of Fest in Calgary, and Orlando.
 

With over 800 performances under its belt, each performance is completely unique as the actors base the show entirely on the suggestions from the audience and yet the laughs are guaranteed.