Motörhead guitarist Phil Campbell joined Tool on stage in Leipzig, Germany on Monday night. According to Blabbermouth, he playing Sober with the guys, and also allegedly also played with them in Cardiff, though this is the first I’ve heard of it. Here’s hoping Billy Thorpe doesn’t join Tool on stage Down Under…

Edit: According to the tour journal at Distortion Online, Phil played during Swamp Song in Cardiff, and on Sober in Leipzig.