Truckfighters is a Swedish two-man stoner rock band with different drummers joining on and off. Formed in Örebro in 2001, the band's current lineup comprises founding members Oskar "Ozo" Cedermalm and Niklas "Dango" Källgren, and currently Joel "Jolo" Alex on drums. They have released five studio albums.
Jens Oskar Cedermalm: Swedish musician and producer, also known by his stage names Ozo or Mr. Ozo, born on September 1, 1976.
He is best known as the singer and bassist in the Swedish stoner rock band Truckfighters with whom he has been active since their inception in 2001. Between 2007 and 2012 he was also singer in the band Greenleaf.
He also runs the record label Fuzzorama Records where he produces and releases music for several Swedish bands in the same genre. Among other things, he has worked with Skraeckoedlan and Witchcraft.