"Cœur papillon" is a re-release of "Cœur parapluie," including 5 new tracks, acoustic versions of the two singles "Puis t’as dansé avec moi" and "Je partirai," and an extended version of the track "Mauvais rêve," in which she recounts her past year and looks ahead to the next: her 28th birthday. Hoshi delivers new, equally personal tracks and reveals her questions, sorrows, doubts, and hopes.