Dave Mustaine net worth emerges from music. He is an American musician and singer best known as the founder, lead and primary songwriter of Megadeth, an American heavy metal band. He is also known for being the former lead guitarist of the American heavy metal band, Metallica.  Dave Mustaine net worth  The estimated Dave Mustaine net worth is $14 million, according to Celebrity Net Worth. … Continue reading Dave Mustaine net worth: Megadeth success and business ventures