The band's fourth album was 1999's platinum certified "Dosage". The first single "Heavy" set a new high mark for 15 weeks at No. 1 on the Mainstream Rock chart. Singles such as "Run", "No More, No Less", and "Tremble for My Beloved" gained notable positions on the rock charts as well. The album was produced by Anthony J. Resta, known for his work with Duran Duran and others. The band also performed at the Woodstock 1999 festival, where they performed "Heavy", a cover of Ozzy Osbourne's song "Crazy Train", and a cover of U2's song "I Will Follow".