Photo: Theo Wargo / Getty Images Entertainment / Getty Images
Metallica bassist Robert Trujillo went back to his roots over the weekend.
Trujillo joined his former bandmates in Suicidal Tendencies for a performance of "I Saw Your Mommy..." at Saturday's set at State Farm Stadium in Glendale, AZ.
The band was opening for Metallica on the M72 tour, as a last-minute replacement for scheduled opener Ice Nine Kills.
The current incarnation of Suicidal Tendencies includes Trujillo's 19-year-old son Tye.