The portraits, sketches and imitations were refined and gave birth to very elaborate performances at the Olympia (December 1976), Bobino (February-April 1978), Théâtre Marigny (October 1979 – June 1980), Thierry Fééries at the Palais des congrès de Paris (November 1980 – January 1981), De de Gaulle à Mitterrand at the Théâtre Marigny (January- December 1983), and Le Luron en liberté at the Théâtre du Gymnase Marie Bell (November 1984 – March 1986).

He then worked mainly with Bernard Mabille and created the character of Adolphe Benito Glandu, caretaker at 22 Rue de Bièvre, a "fairly extensive caricature of the average Frenchperson: an individual with no particular equities, influenced by calamities, and that defines Le Luron: Petainist under Pétain, Mendesist under Mendès France, and Socialist May 10 to 11!".

He also pursued an intense activity on television and radio: Chat en poche by Georges Feydeau as part of the TV show Au théâtre ce soir (released 24 October 1975) and Numéro 1 by Maritie and Gilbert Carpentier (March 1976 and June 1979).

From 1978 to 1979, he hosted a weekly show, Les Parasites sur l'antenne, on France Inter including Pierre Desproges, Lawrence Riesner, Bernard Mabille and Evelyne Grandjean as columnists.

This statement, and the false marriage itself, are often interpreted as a public act of vengeance, especially by Le Luron's friends, as most of the attention was focused on Coluche, although the press commended both of them for their outspokenness.