In the mid-1990s, he was the lead singer of an old school Death metal band called Warpath and used to play the charango. He formed the band Crashdïet in 2000 but in 2002, the band split up, and he continued with a new lineup. Their music was based on 1980s sleaze bands, such as Mötley Crüe and Twisted Sister, and the band gained a cult following, especially in Sweden.

Crashdïet released four singles from their debut album Rest in Sleaze which were hits in Sweden; "Riot in Everyone", "Breakin' the Chainz", "Knokk 'Em Down" and "It's A Miracle".

On 20 January 2006, 25-year-old Dave Lepard committed suicide by hanging himself in his apartment after a bout of depression. His three surviving bandmates performed a final tribute show the following February. They subsequently decided to remain together and by October 2007 the trio announced they would continue under the name Crashdïet after all, with the approval of Lepard's family, in tribute to Lepard. They eventually hired a new singer, H. Olliver Twisted.