Roberto Agustín Miguel Santiago Samuel Trujillo Veracruz (; born October 23, 1964) is an American musician who has been the bassist for heavy metal band Metallica since 2003. He first rose to prominence as the bassist of crossover thrash band Suicidal Tendencies from 1989 to 1995, while also collaborating with Suicidal Tendencies frontman Mike Muir for funk metal supergroup Infectious Grooves. After leaving Suicidal Tendencies, he performed with Ozzy Osbourne, Jerry Cantrell, and heavy metal band Black Label Society. Trujillo joined Metallica in 2003 and is the band's longest-serving bassist. He was inducted to the Rock and Roll Hall of Fame as a member of Metallica in 2009.
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Robert Trujillo takes the No. 6 spot on No Treble’s 2025 Reader Favorite Bassists list after a year spanning metal milestones and new gear.
Robert Trujillo unveiled his new Godin Yellow Flame bass at Guitar Center. The ultra-limited model is signed and now available.
Metallica’s Robert Trujillo and Dunlop unveil the Warlord bass pick, featuring tapered edges for tonal range and a design tailored for bassists.
Robert Trujillo brings the low-end firepower to Metallica’s Toronto show with a crushing performance of “Battery” on his metallic gold Warwick.
Black Sabbath’s final show is set for July, reuniting Ozzy Osbourne, Geezer Butler, Tony Iommi, and Bill Ward for one last time—alongside a massive lineup of metal legends.