After a lengthy search for a new lead guitarist, Megadeth enlisted Marty Friedman, who officially joined in February 1990. In July 1989, Nick Menza was hired to replace Behler on the drums. Six months later, Mustaine fired both Behler and Young. in February 1988, Mustaine noticed problems developing with Behler. Marty Friedman became the band's first long term lead guitarist from 1990 till 2000.ĭuring their world tour in support of So Far, So Good. So What!, being replaced by Jeff Young and Chuck Behler, respectively. After years of problems stemming from substance abuse, Mustaine fired both Poland and Samuelson before recording the third album So Far, So Good. Poland then rejoined Megadeth in October of the same year, shortly before they began work on Peace Sells. and Business Is Good!, Poland left the band and was temporarily replaced by Mike Albert. During Megadeth's 1985 tour promoting their debut album, Killing Is My Business.

This lineup was short-lived and after a few shows in 1984, Lee Rausch was replaced by jazz fusion drummer Gar Samuelson, in addition to the second guitarist Chris Poland. Slayer guitarist Kerry King covered live dates while a permanent replacement was sought.

Megadeth recorded Last Rites, a three-song demo. The first line-up after their name change from Fallen Angels featured Mustaine, vocalist Lor Kane and bassist David Ellefson briefly in 1983, the band was later joined by guitarist Greg Handevidt and drummer Dijon Carruthers, with Lor Kane leaving and Mustaine taking up lead vocals. Megadeth is an American thrash metal band formed by guitarist/vocalist Dave Mustaine after he was fired from Metallica.

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