David Scott Mustaine is an American musician. He is the co-founder, frontman, primary songwriter and sole consistent member of the thrash metal band Megadeth. Mustaine has released sixteen studio albums with Megadeth, sold over 38 million records worldwide, with six albums platinum-certified, and won a Grammy Award for Best Metal Performance in 2017 at the 59th Grammy Awards, for the title track of their fifteenth studio album, Dystopia.

Megadeth is an American thrash metal band formed in Los Angeles in 1983 by vocalist/guitarist Dave Mustaine. Known for their technically complex guitar work and musicianship, Megadeth is one of the "big four" of American thrash metal along with Metallica, Anthrax, and Slayer, responsible for the genre's development and popularization. Their music features complex arrangements and fast rhythm sections, dual lead guitars, and lyrical themes of war, politics, religion, death, and personal relationships.