According to RollingStone.com, PRIMUS has tapped TOOL drummer Danny Carey to sit behind the kit for a handful of PRIMUS shows in September while the band's original drummer, Tim "Herb" Alexander, continues to recover from open heart surgery following a heart attack last month."The mighty Tim 'Herb' Alexander is a polyrhythmic Viking of extreme and unique talent so the one person that we thought could step into his shoes and do it justice is the one and only Mr. Danny Carey," PRIMUS frontman Les Claypool tells RollingStone.com. "Whereas Herb is the stocky, Easter Island-faced, boulder of a drumming human, at nearer to seven feet, Danny Carey is the mighty redwood tree of percussion; towering over his kit like a golden-haired noble sequoia. "I can't wait to see that menacing grin of Danny's shine out as we pound our way through 'Here Come the Bastards' and 'Those Damned Blue-Collar Tweekers'. He's a dear old friend and we are extremely excited to have him aboard, and I would wager we are equally if not more intrigued than most by what kind of sounds are going to come out of the three of us once we actually get in a room together and do more than just consume fancy booze." Carey will perform with PRIMUS at the Riot Fest appearances in Chicago and Denver, as well as an after party at Chicago's Concord Music Hall on September 13. PRIMUS will be release "Primus & The Chocolate Factory With The Fungi Ensemble", the band's first album with Alexander on drums in nearly two decades, on October 21. Alexander, 49, originally left PRIMUS in 1996 and played sporadically with the band in the early 2000s in addition to being involved with various other groups, including LAUNDRY, A PERFECT CIRCLE, PUSCIFER and a solo project. Before he rejoined PRIMUS in 2013, he played on several of the band's albums, including 1991's "Sailing The Seas Of Cheese" and 1993's "Pork Soda". Alexander was the first drummer of A PERFECT CIRCLE, performing early live shows with the band, and recording drums for the track "The Hollow" on the band's debut album, "Mer De Noms". He is listed as a member in the band's DVD/CD release "aMOTION". Alexander is a member of Maynard James Keenan's PUSCIFER project. He has toured with them and can be heard on several of their recordings.