Robert Trujillo – Metallica

Robert Trujillo (born October 23, 1964), is an American musician and songwriter. He has been the bassist of the American heavy metal band Metallica since 2003. He was also a member of crossover thrash band Suicidal Tendencies, funk metal supergroup Infectious Grooves, heavy metal band Black Label Society, and has worked with Jerry Cantrell and Ozzy Osbourne.

Source: https://en.wikipedia.org/wiki/Robert_Trujillo