All of those bands are rite except maybe u2, and Halen.... Primus wouldn't be much without his signature vocals, lyrics and his bass playing. Surprisingly Van Halen was a major contributor for his popularity, but i mean come on, who can forget David Lee Roths "singing".
Member of band: Amphiptere (am-fi-teer)
Genre: Speed Metal, Thrash Metal
I am: Lead guitar