Libido is the sixteenth album by experimental French singer Brigitte Fontaine, released in 2006 on the Polydor label. It once again features a collaboration with -M- on the song Mister Mystère, which -M- also sang solo on his fourth album, to which it gave its title. Brigitte Fontaine, for the first time in more than thirty years, calls upon arranger Jean-Claude Vannier for some songs, Barbe à papa and Mendelssohn. The title of Château intérieur comes from a book by Teresa of Ávila, although Fontaine admitted she didn't read it.[1]