Motley Crue fires Mick Mars and replaces him with John 5: A sad day for heavy metal May 12, 2023 by rockshopbrad News Motley Crue, one of the most iconic heavy metal bands of all time, has fired longtime guitarist Mick Mars and replaced him with John 5. The news was announced on the band's website on May 12, 2023. Mars, who has been with the band since its i ...