[4] Mudde played in the Rock Against Communism (RAC) band Brigade M,[5] as well as the Feyenoord themed Oi!

[6] He is the older brother of the political scientist Cas Mudde, who studies radical-right movements.

[8] Mudde also had been involved with the RAC record companies Sassem Produkties[9] and Muziek met wortels (Music with Roots).

On 22 October 2005, he gave a speech for the National Alliance party about Antifaschistische Aktion.

[10][11] In later years, Mudde has moved on from politics and founded a rugby club.