Overview
- Mosimann publicly disclosed on Wednesday, June 24, 2026 that he is the father of a two-year-old daughter named Hayden, in a France Inter radio chronicle and an Instagram post.
- He says he offered to be the sperm donor for his best friend and manager, Maud Brooke, who was pursuing a solo PMA (medically assisted procreation) process after several years of attempts.
- Before the birth the pair signed a notarized agreement stipulating the donor would have no rights or obligations, a pact Mosimann says he intended to honor at first.
- At the child’s birth a midwife asked him to do skin-to-skin, which Mosimann describes as an immediate, overwhelming emotional shock that led him to ask to recognize the baby and to change the earlier arrangement with Brooke’s consent.
- The decision, kept private for about two years, highlights shifting family forms and raises public attention to how emotional moments can prompt voluntary legal and parental reversals in assisted-reproduction cases.