Lou Deleuze (born 23 March 2014) is a French child actress and singer. She represented in the Junior Eurovision Song Contest 2025 with the song "Ce monde" and won with 248 points, the second-highest score in the history of the contest behind that of the 2019 Polish entry.
Deleuze was born in ÃÂle-de-France on 23 March 2014. Her father was a luthier.
The artist began her acting career at the age of seven in the 2022 film .
In 2024, Deleuze auditioned to represent in the Junior Eurovision Song Contest 2024 in Madrid, Spain, but was not selected. Later that year, she competed in the of .
On 29 September 2025, the singer was announced as the for the Junior Eurovision Song Contest 2025 in Tbilisi, Georgia, with the song "Ce monde", written by John Claes, Jonathan Thyssens, and . The entry was released on the same day.
She eventually won the contest in Tbilisi on 13th December.