Question: Who is the father of the performer of Qui de noux deux?

Knowledge 1: Qui de nous deux
Qui de nous deux ? (2003) is an album by French singer-songwriter Matthieu Chedid in his persona as -M-. It is his third full studio album, or the fourth if including the instrumental work Labo M which he had released earlier the same year. The title of the album and its best known track means 'Which of Us Two' reflecting the ongoing contrast between Chedid's real persona and that of his invented character -M-. The album's liner notes explain that the love discussed in that song are for the pink guitar that features on both the album cover and the surreal music video that accompanied the song. The pink guitar had been specially created to celebrate the birth of Chedid's daughter Billie in 2002. [SEP] Knowledge 2: Matthieu Chedid
Matthieu Chedid was born in Boulogne-Billancourt, Hauts-de-Seine, France, the son of French singer Louis Chedid, and the grandson of the Egyptian-born French writer and poet of Lebanese descent Andrée Chedid who has written lyrics for him. His sister is the music video and concert director Émilie Chedid.
Knowledge 1: Qui de nous deux
Qui de nous deux ? (2003) is an album by French singer-songwriter Matthieu Chedid in his persona as -M-. It is his third full studio album, or the fourth if including the instrumental work Labo M which he had released earlier the same year. The title of the album and its best known track means 'Which of Us Two' reflecting the ongoing contrast between Chedid's real persona and that of his invented character -M-. The album's liner notes explain that the love discussed in that song are for the pink guitar that features on both the album cover and the surreal music video that accompanied the song. The pink guitar had been specially created to celebrate the birth of Chedid's daughter Billie in 2002. [SEP] Knowledge 2: Marcel Brillouin
Born in Saint-Martin-lès-Melle, Deux-Sèvres, France, his father was a painter who moved to Paris when Marcel was a boy. There he attended the Lycée Condorcet. The Brillouin family returned to Saint-Martin-lès-Melle during the Franco-Prussian War of 1870 to escape the fighting. There he spent time teaching himself from his grandfather's philosophy books. After the war, he returned to Paris and entered the École Normale Supérieure in 1874 and graduated in 1878. He became a physics assistant to Eleuthere Mascart (his future father-in-law) at the Collège de France, while at the same time working for his doctorates in mathematics and physics, which he gained in 1880 and 1882, respectively. Brillouin then held successive posts as assistant professor of physics at universities in Nancy, Dijon and Toulouse before returning to the École Normale Supérieure in Paris in 1888. Later, he was Professor of Mathematical Physics at the Collège de France from 1900 to retirement in 1931.
Knowledge 1: Qui de nous deux
Qui de nous deux ? (2003) is an album by French singer-songwriter Matthieu Chedid in his persona as -M-. It is his third full studio album, or the fourth if including the instrumental work Labo M which he had released earlier the same year. The title of the album and its best known track means 'Which of Us Two' reflecting the ongoing contrast between Chedid's real persona and that of his invented character -M-. The album's liner notes explain that the love discussed in that song are for the pink guitar that features on both the album cover and the surreal music video that accompanied the song. The pink guitar had been specially created to celebrate the birth of Chedid's daughter Billie in 2002. [SEP] Knowledge 2: André Hardellet
André Hardellet (13 February 1911 – 24 July 1974) was a French poet and writer. He was the 1974 winner of the Prix des Deux Magots.

Answer: Louis Chedid