[4] The same month, former minister and leader of the Parti chrétien-démocrate Christine Boutin wrote to Kronenbourg asking them to stop supporting the festival.

[5] The 30 March, questioned by deputy Patrick Roy, the minister Frédéric Mitterrand declared to the Assemblée Nationale that the detractors of the festival should calm down.

On 9 June 2010, the AFC (Associations Familiales Catholiques) sued the Hellfest, asking them not to allow people under 18 years old to attend the festival and to give them the titles of the songs to be played during the 2010 edition.

The first association was created in 2000 in Clisson as "CLS CREW", in order to organize concerts of hardcore and punk in the region of Nantes.

In 2004, the festival moved to Le Mans and took place in the halls of the 24 Hours circuit where it attracted 21,000 spectators for bands such as Slipknot and Soulfly.

This time 30,000 admissions were recorded at Le Mans over three days, as fans came to see acts such as Slayer, Motörhead and Anthrax, across three stages.

[9] On 19 February 2021, it was announced that Hellfest had once again been cancelled, due to "uncertainties about the health situation and the latest government regulations", and would be rescheduled to 2022.