Les Ardentes is organised ever since 2006, with Fabrice Lamproie and Gaëtan Servais as founders.

[1] The festival name is a French plural noun meaning "The Burning", a referral to the nickname of host city Liège, La cité ardente ("The Burning City").

Les Ardentes is one of the major festivals in the Meuse–Rhine Euroregion (formed by parts of Belgium, Germany and the Netherlands).

Every year the happening attracts more people, with over 25,000 spectators at its start and a record of +-200.000 in the last edition of 2022.

The festival is easily accessible by public transport - bus or train.