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Start Date: March 17, 2020
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Commercial performance

D'eux was a huge commercial success. It became the best-selling French-language album in history, with sales of more than ten million copies worldwide. In France, D'eux debuted at number one and stayed at the top of the chart for a record-breaking forty-four weeks. When Dion's next album,Falling Into You, was released in March 1996, it debuted at number two, the top position still being occupied by D'eux. The album topped the 1995 Year-end Chart in France and on the 1996 Year-end Chart it was number four. In August 1995, D'eux was certified Diamond in France. Eventually, it has sold 4.5 million copies there and became the best-selling album of all time in France.

In Wallonia, D'eux spent thirty-seven weeks at the top of the chart, a record that still stands, and became the best-selling album of 1995. It also topped the chart in Belgium Flanders for four weeks. In 1997, D'eux was certified six-times platinum in Belgium and is one of the best-selling albums of all-time in this country. In Switzerland, D'eux topped the chart for five weeks and became the second best-selling album of the year 1995 and the best-selling album in 1996. In 1998, D'eux was certified four-times platinum in Switzerland and is one of the best-selling albums of all-time there.  It also topped the chart in the Netherlands for two weeks and was certified platinum. In Quebec, the album topped the chart for thirty-four weeks. On the Canadian Albums Chart, D'eux peaked at number twenty-nine and was certified seven-times platinum in 1997 for sales of 700,000 copies.

Although a French-language album, D'eux charted and was certified in many non-French speaking countries. In the United Kingdom, it peaked at number seven, setting a record for a French release. It was certified gold there and has sold 250,000 copies. Celine Dion became the first and only artist who achieved UK gold certification with a French-language recording. Later, she repeated this success with S'il suffisait d'aimer. Even in the United States, where it was released as The French Album, the album has sold 300,000 copies. D'eux also reached the top ten in Portugal, Denmark and Sweden. It was also certified platinum in Poland and gold in New Zealand. On theEuropean Top 100, D'eux reached number three and eventually it was certified eight-times platinum by the IFPI for sales of eight million copies in Europe.