The 60-year-old jazz pianist Jacky Terrasson is under formal investigation for sexual assault of a minor, following a complaint from a female teenager who was six years old at the time of the alleged events in 2015. This was announced on Friday by the Bordeaux prosecutor's office. In addition to this formal investigation, which began on June 17, the musician is also under the status of assisted witness regarding an alleged rape of the same child, according to Renaud Gaudeul, the prosecutor in Bordeaux, confirming details from the newspaper Le Monde. Jacky Terrasson's lawyers, Emmanuel Daoud and Arnaud Dupin, stated that he "denies" the allegations. The victim, who is now an adult, claims that the alleged rape occurred in 2015 during a tour where she was accompanying her father, who was close to the musician. She filed a complaint in September 2025, as reported by France Culture and France Inter. The investigating judge did not consider that the conditions for placing Jacky Terrasson under formal investigation for the rape allegations were met, so he was placed under the status of assisted witness instead. However, the lawyers emphasized that this does not prejudge the final outcome of the investigation. Cécile Boulé, the plaintiff's lawyer, told the newspaper Sud Ouest that the facts "could be classified as rapes" and that the investigation is ongoing, with the case likely to evolve further. In addition to this case, three other women have accused Jacky Terrasson of sexual assaults, although no formal complaints have been filed against him in these instances. According to an article published on Friday by Le Monde, one of these women is Mathilde, a singer who gained fame through the show The Voice. She accused Terrasson of "fondling" her during an album recording in 2015. Another anonymous musician described an alleged assault on a boat in La Rochelle in 2017, while an anonymous communications professional claimed an assault occurred during a dinner in 2002. Regarding the allegations from 2015, Jacky Terrasson's lawyer, Emmanuel Daoud, told AFP that the pianist "firmly denies" them and is not aware of any legal proceedings related to these claims. As for the 2002 incident, Daoud said that an event from over 20 years ago "does not evoke anything for Mr. Terrasson," adding that "in any case, the latter has never had such behavior." Born in Berlin in 1965 to a French father and an African-American mother, Jacky Terrasson is a well-known figure in the jazz world. He was awarded the Django-Reinhardt prize for best French jazz musician in 2003, recognizing his significant contributions to the genre.