 After another hiatus while members worked on solo projects, Sabbath joined Ozzfest again in 2001, although a later tour was cancelled when Osbourne was ordered by his label Epic Records to complete work on his new album "Down to Earth".After another hiatus, Black Sabbath returned in 2004 with new touring keyboardist Adam Wakeman.Halford reprised his role as substitute vocalist for a show on 26 August, after Osbourne was unable to sing due to bronchitis.