The all-star metal project of Dave Grohl where he played almost all the instruments (outside of lead parts by Bubba Dupree of Void , Kim Thayil formerly of Soundgarden , and bass parts by lemmy ) that featured a multitude of vocalists. Dave recorded tracks reminiscent of the singers’ respective bands, which he grew up greatly admiring, and sent the recordings to them, with a note stating simply “Send back with vocals.” Complete list of singers Cronos ( Venom ) Max Cavalera ( Soulfly , Nail