Danny Carey, Larry Lalonde, Matt Stone and Stewart Copeland
davidbowiedavidbowie from Reddit posted this video up from Youtube earlier today, which features a new jam with Danny, Larry Lalonde (Primus), Matt Stone (South Park) and Stewart Copeland (The Police). From what I understand the track is called Blotto Mondo and was recorded at Copeland’s house/studio. Danny contributes some percussion, including the triangle, in what is an interesting video: