Un Monde Parfait was the debut album from the French singer Ilona Mitrecey and was released on 10 August 2005 by Sony BMG. In Germany and Switzerland, it was composed of only six tracks from the French version and was reentitled Ilona there. The album reached number two in France, Mitrecey's country-home, and Portugal, and number nine in the Francophone part of Belgium. It provided five singles which were all top ten hits in France, the eponymous and lead single even becoming the best-selling single of the 21st century in the country, with over 1.5 copies sold.
On the French SNEP Albums Chart, Un Monde parfait went straight to number two on 15 October, which was its peak position, and remained on the chart for 58 weeks.[2] It was the 34th best-selling album in 2005, with 178,454 copies sold,[3] and the 130th in 2006, with a total of 257,100 sales,[4] and achieved double gold status. On the Portuguese Albums Chart, it stayed for 25 weeks from 12/2006 to 38/2006 and reached number two for three weeks.[5]