Rolling Stone reports that Tom Morello spent a day recording with Bruce Springsteen in Australia while he was subbing in for guitarist Steve Van Zandt on tour. It was the first time Springsteen has ever entered the studio while in the middle of a tour. Evidently the The Boss and his E Street Band are working on a follow up to their 2012 album Wrecking Ball. The magazine also quotes Springsteen as saying, “I have a lot of material. I still feel like I’m in the middle of the well.”

Bruce Springsteen’s summer European Wrecking Ball tour continues on Wednesday night in Gijon, Spain.