[citation needed] On 20 December 1990 it was announced that Dion has postponed the rest of her concert tour for a two-month period.
She still suffered the effects of a bout with laryngitis, coupled with exhaustion from a series of performances at Theatre St. Denis.
Performances in Quebec City, Sherbrooke, Ottawa and Trois-Rivières, scheduled for January and February, were rescheduled in the spring.
Celine wrote on that experience: "I had to begin the Unison tour by doing four shows in a row for my wonderful Quebecois audience.
The 1991 show at the Winter Garden Theatre in Toronto, Ontario, Canada was filmed and aired on MusiMax.
Three songs from that concert: "Délivre-moi", "Have a Heart", and "Calling You" were included later on the Unison home video.