The Unison Tour is the third concert tour by Celine Dion. The tour was organized to support the album Unison. Celine performed her show 75 times in Canada.
The tour had three legs. At first Céline Dion toured Quebec, starting in October 1990 in Drummondville and ending on December 6, 1990 in Quebec City. During one of the shows on October 13, 1990 in Sherbrooke Dion lost her voice for the second time (first time was during the Incognito tournée). Because of laryngitis, Dion had to postpone next three concerts in Montreal, between October 16-18, 1990.
On December 20, 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 Rivieres, scheduled for January and February, were rescheduled in the spring. Celine on that experience: "I had to begin the Unison tour by doing four shows in a row for my wonderful Quebecois audience. Two in Drum-mondville and two in Sherbrooke. The tragedy happened on the third night. My voice broke all of a sudden. It came apart like wet paper. It was like entering a vacuum, total darkness. I felt as if I were blowing into a punctured balloon. At that moment I believed my voice would never return. Or that it would come back completely undone, changed, unrecognizable. During a guitar solo, I gave a signal to the stage manager that I could not go on. Rene went onstage to tell the audience what had happened and to assure them that I´d come back to the show later, in a few days or weeks, as soon as I could. Then people began to applaud. They stood up to show me their sympathy and support. After that, I dissolved into tears."
Later, she started the tour in the English-speaking Canada, which lasted between February and April 1991.
During the third leg, between May 19 and October 9, 1991 Dion gave 37 concerts in 25 different cities.
She ended her tour in Quebec, performing in Quebec City on August 31, 1991.
