Sloper was formed in 2018 by two notorious drummers: Mario Goossens of Triggerfinger and Cesar Zuiderwijk of Golden Earring. Drummer Cesar Zuiderwijk joined Golden Earring in 1970, that toured around the world after scoring a world hit with Radar Love. Fellow drummer Mario Goossens was a founding member of Triggerfinger, a powerful rock trio that has been touring clubs and rock festivals in continental Europe for more than 20 years.

Even before the two men met, there was an enormous mutual respect. After they met, they finally decided to ‘do something together’. They then recruited British vocalist Peter Shoulder (Winterville, The Union and Silverthorne) and guitarist Fabio Canini (BE) to form this musical demolition crew together: Sloper (meaning 'Demolisher').

In late 2023, the band welcomed two new members to replace Peter: Jan Bas on vocals/guitar and Bas Soetens on bass. Together with Mario, Cesar and Fabio, they form the new Sloper. The music for the brand new album Changing Colors is more elaborate than the straightforward rock of Sloper's debut. Expect a wider variety of influences from the 80s, 90s, and even Northern Soul.