He also participates in various television and radio shows with the singer, in particular Merci Renaud on France 2 alongside Julien Clerc, Patrick Bruel and Bénabar.

In March 2018 the clip of Dans mes poches was produced by Biscuit Prod in the style of the comic strip, with drawings made by André Juillard.

In December 2018, Gauvain Sers released the song Les Oubliés which talks about rural areas and the “left behind” in today's French society which operates “at two speeds”.

Gauvain Sers released in March 2019 a new title, Que restera-t-il de nous ?, written by author Michel Bussi.

This ballad is also present in Bussi's book J'ai dû rêver trop fort, in the form of an extract before each chapter.

In October 2020, during the ceremony at the Place de la Sorbonne in tribute to Professor Samuel Paty, assassinated in Conflans-Sainte-Honorine, a poem by Gauvain Sers composed for the occasion was read.