In 1922, Trenet moved to Perpignan, this time as a day pupil. A water-colourist friend of the family André Fons-Godail, the “Catalan Renoir”, used to take him out painting. His poetry is said to have the painter’s eye for detail and colour. Many of his songs had references to his surroundings such as places near Narbonne, the Pyrenees and the Mediterranean coast.

He passed his baccalauréat with high marks in 1927. After leaving school he left for Berlin where he studied art, and later he also briefly studied at art schools in France. When Trenet first arrived in Paris in the 1930s, he worked in a movie studio as a props handler and assistant, and later joined up with the artists in the Montparnasse neighbourhood. His admiration of the surrealist poet and Catholic mystic Max Jacob (1876–1944) and his love of jazz were two factors that influenced Trenet’s songs.

From 1933 to 1936, he worked with the Swiss pianist Johnny Hess as a duo known as Charles and Johnny. They performed at various Parisian venues, such as Le Fiacre, La Villa d’Este, the Européen and the Alhambra. They recorded 18 discs for Pathé, the most successful of which was “Quand les beaux jours seront là/Sur le Yang-Tsé-Kiang”. The Charles and Johnny records feature Hess on piano, with the two frequently singing in two-part harmonies with quickly alternating solo spots for the two. Around 1935, the duo appeared regularly on the radio on a broadcast called Quart d’heure des enfants terribles.

The duo continued until 1936 when Trenet was called up for national service. It was after his national service that Trenet received the nickname that he would retain all his life: “Le Fou chantant” (The Singing Madman). In 1937, Trenet began his solo career, recording for Columbia, his first disc being “Je chante/Fleur bleue”. The exuberant “Je chante” gave rise to the notion of Trenet as a “singing vagabond”, a theme that appeared in a number of his early songs and films.

At the start of World War II, Trenet was called up. He was in barracks at Salon-de-Provence until he was demobilized in June 1940, when he moved back to Paris. There he performed at the Folies Bergère or at the Gaîté Parisienne (two famous cabarets) in front of a public often consisting of German officers and soldiers. The collaborationist press tried to compromise his name and published that “Trenet” was the anagram of “Netter” – a Jewish name. He was able to show his family tree to the authorities, proving that he had no Jewish origin.

His song “La Mer”, which according to legend he composed with Léo Chauliac on a train in 1943, was recorded in 1946. Trenet explained in an interview that he was told that “La Mer” was not swing enough to be a hit, and for this reason it sat in a drawer for three years before being recorded.

On 14 September 1951, Trenet returned to Paris and made a comeback at the Théâtre de l’Étoile. He incorporated ten new songs into his act, including “De la fenêtre d’en haut” and “La Folle Complainte”. In 1954 he performed at the “Olympia” music-hall in Paris for the first time. The following year he wrote the famous “Route nationale 7”, a tribute to the introduction of paid holidays.

In 1958, Trenet was the headlining act at the Bobino and the Alhambra. In 1960, he returned to the Théâtre de l’Étoile, appearing on stage for the very first time without the famous trilby hat which had for so long been part of his act.

In 1963, Trenet spent 28 days in prison in Aix-en-Provence. He was charged with corrupting the morals of four young men under the age of 21 (they were 19). His chauffeur claimed that Trenet was using him as a pimp. The charges were eventually dropped, but the affair brought to public light the fact that Trenet was homosexual. He was never particularly public about it and spoke of it rarely.

In 1970, Trenet flew to Japan to represent France at the Universal Exhibition in Osaka. The following year he left Columbia, his long-time record label, and recorded Fidèle and Il y avait des arbres. He also made a memorable appearance at the “Olympia”.

In 1973, Trenet, who had just celebrated his 60th birthday, recorded a new album, Chansons en liberté. The twelve songs on this album were an interesting mix of old and new compositions. His 60th birthday was celebrated in grand style by the French media.

Trenet made a surprise announcement in 1975, declaring that he was retiring from the music world. At the end of his final concert at the “Olympia” he bade his audience an emotional farewell. Following the death of his mother in 1979, he shut himself away from the world for the next two years.

Nevertheless, in 1981, Trenet made a comeback with a new album devoted to sentimental memories of his childhood. Trenet then returned to his peaceful semi-retirement in Occitania (South of France), occasionally reappearing for a special gala performance in France or abroad. After giving farewell concerts in France, Trenet was persuaded out of retirement by a French Canadian lawyer, Gilbert Rozon, in 1983 for a farewell concert in Montreal. Rozon became Trenet’s manager thereafter and as a result Trenet performed many more concerts including a series every night for three weeks at the Palais des Congrès in Paris in 1986.

On 21 May 1999, he returned to the music scene with his album, Les poètes descendent dans la rue (Poets Take to the Streets). Following the release of the album, Trenet returned to the live circuit.

In April 2000, Trenet was rushed to hospital after suffering a stroke. The singer was forced to spend several weeks in the hospital while recovering, but by the autumn of that year, he was well enough to attend the dress rehearsal of Charles Aznavour’s show at the Palais des Congrès on 25 October. This was his final public appearance.

In November 2000, the Narbonne house in which Trenet was born – which had become 13 Avenue Charles Trenet – was turned into a small museum. Visitors were able to view souvenirs from Trenet’s childhood and family life (especially those belonging to his mother, who had spent most of her life in the house), as well as original drafts of the songs which had made his career.

Trenet died two months later on 19 February 2001 after suffering a stroke.

In 2017, a service centre on the A9 autoroute between Narbonne and Béziers was renamed in his honour and contains an exhibition evoking his life and work and sculptures by Pascale et Thierry Delorme.