"Double je" is a 2007 song recorded by the French singer Christophe Willem with lyrics by Zazie.

The song, with its "very funky melody and background vocals", was considered as being "much more effective" than the previous single, "Élu produit de l'année", released some weeks earlier digitally in France and as a single in Belgium (Wallonia).

Produced by the director Sylvain Fusée who also wrote the screenplay with Willem,[2] the music video shows the singer participating in a group therapy, to express his dual personality.

[7] Certified Platinum disc by the SNEP,[8] the song was the best-selling single of the year,[9] with 309,481 sales.

It totaled 19 weeks in the top ten,[14] achieved Gold status[15] and became the fourth best-selling single of the year.