Bart Claessen

Bart Claessen (born 22 January 1980, Asten, Netherlands) is a Dutch electronic dance DJ. He is best known for the trance songs "On the Move" and "Infected" from 2001 under the name Barthezz, which reached numbers 18 and 25 on the UK Singles Chart respectively.

He has released a number of tracks under his own name, most notably "First Light" (2007) and "Madness" (2008).