1988
On April 30, Céline wins Eurovision contest in Dublin, Irlande, with the song Ne partez pas sans moi. Céline represented Switzerland for the contest.
In May, she begins a lightning tour in Europe.
She wins again 4 awards Félix at the gala of the ADISQ.

1989
She begins the recording of her first English album Unison which will last more than year.

1990
On April 2, Céline releases her first album in English, Unison, an audacious declaration of musical independence, is worth to the singer her breakthrough in the United States with the song Where does my heart beat now, which will appear in the Top 5.
A bit further, Céline begins the shooting of a french canadian series 'Des Fleurs Sur La Neige'.
Later in the year, Céline begins a tour for Unison. It is in this tour that for the first time she breaks her voice by singing.
In Quebec, the gala of the ADISQ awards her the Félix of the English-speaking artist of the year. Céline refuses the award by evoking that she will always remain French-speaking.
On September 21, she participates for the first time in the American broadcast Jay Leno's 'Tonight Show' with Phil Collins.
She participates too for the first time in 'Late Show'.

1991
On March 3, the Gala of the Juno honors Céline of the awards Juno of the feminine interpreter of the year and awards to Unison Juno of the album of the year. So, for the first time in the history of the Junos, a French-canadian artist receives the biggest honors in these categories.
On March 9, the series 'Des Fleurs Sur La Neige' is diffused in Quebec.
She is invited to hand an award to American Music Awards (AMA).
On June 19, Céline celebrates her ten years in the world of the spectacle with a Canadian tour sold out, with a concert accompanied by the Metropolitan Symphony orchestra in the Forum of Montreal being able to welcome 16,000 spectators, as well as a presentation, on October 29 in Ottawa, in the National Centre of the Arts at request of Prince Charles and of Princess Diana of England.
In autumn, Céline releases Dion chante Plamondon. Céline performs the lyrics of very famous French-canadian composer-songwriter, Luc Plamondon there.
In October, Céline receives another Félix and special price of the Union of the Artists, to underline her international success and her reconciliation with the ADISQ.