Laetitia studied at the CNSMD in Lyon and at USC Los Angeles, she has signed the original soundtracks of more than 80 films including the feature film, L'Home dels Nassos by Abigail Schaaff, the feature Pamfir by Dmytro Sukholytkyy-Sobchuk selected at the Directors' Fortnight or the short film À point by Aurélie Marpeaux (in pre-selection at the César 2023). She received the Prix Révélation 2022 : Compositrice de Musique de Film at the Festival des Arcs as well as the Prix U2C (Union des compositrices et des compositeurs) 2023 for the score of the documentary film Rochefort, Marielle, Noiret: les copains d'abord by Pascal Forneri.