Barthezz (born Bart Claessen; January 22; 1980; Asten; Netherlands) is a Dutch dance music DJ. He is best known for his dance tracks; -On the Move- and -Infected-; which reached Number 18 and 25 in the UK Singles Chart respectively. Under his own name; he has released a number of tracks; most notably -First Light-.He has also released tracks under another pseudonym; Stereoshaker. Following these releases he firmly established himself on the dance scene. His own productions -Playmo- and -When Morning Comes- proved popular on the dance floors across Europe. Barthezz further expanded his work remixing Chocolate Puma-s track -Always and Forever-; Ferry Corsten-s -Junk- and Public Domain-s -I Feel Love-.