Un Monde Parfait was the debut album from the French singer Ilona (Mitrecey), and was released on August 10, 2005, by Sony BMG.
Part of the album was released in Germany on August 19, 2005 and in Switzerland, however it only had 6 of the tracks, and was entitled Ilona. Some fans who had purchased this mini version were angered as, if they wanted all the tracks, they had to purchase the new version.
This album was marketed in France on October, 2005. In French SNEP Albums Chart, it went straight to number 2 on October 15, which was its peak position, and remained on the chart until its 58th week, on February 2, 2007.Un Monde parfait was the 34th best selling album in 2005, with 178,454 copies sold, and the 130th in 2006, with 257,100 whole sales.
In Portuguese Albums Chart, it stayed for 25 weeks from 12/2006 to 38/2006 and reached #2 for three weeks.