У Ньюстеда свой проект - Echobrain, а в Воиводе он в одном альбоме (2003 год) принимал участие, хотя сейчас в составе группы указан.
Newsted had also found time to guest on other artist's recordings (Voivod's Phobos, Jim Martin's Milk & Blood, U.N.K.L.E.'s Psyence Fiction, and Sepultura's Against) and was set to launch a side-project titled Echo Brain in 2000, which appeared to cause some strife within Metallica -- confirmed by a tell-all interview by all four bandmembers in Playboy magazine in early 2001. Around the same time the aforementioned Playboy interview hit the stands, Newsted abruptly left Metallica, offering the statement, "Due to private and personal reasons, and the physical damage I've done to myself over the years while playing the music I love, I must step away from the band."
http://www.allmusic.com/cg/amg.dll?p=amg&sql=11:mumyxdkb8old~T1А про Трухильо сказано так: Robert Trujillo - Bass (ex-Suicidal Tendencies, Jerry Cantrell, ex-Black Label Society, Glenn Tipton, Ozzy Osbourne, Infectious Grooves)