Worship Music is the tenth studio album by American heavy metal band Anthrax. It is their first album of original material since 2003's We've Come for You All and it marks the return of long-time vocalist Joey Belladonna, the first recording since 1990's Persistence of Time. The album was released in 2011, on September 12 internationally, September 13 in the U.S., and in Europe on October 23. The album was initially recorded and finished with a release set for May 2009, and was to feature Dan Nelson on vocals. However, after developments made later on in the year, he was no longer a member of the band, and when asked what would happen to the completed studio album Worship Music, featuring his vocals, guitarist Scott Ian said: "Until we have a new singer, I can't tell you what will happen to the record. We'll probably change a few things on it, including the vocals. However, nothing's been decided. Expect that the release date will go back, possibly to next year." It was assumed that John Bush was going to record new vocals for the album due to his reunion with the band, however this ultimately did not happen. In an interview with metalsucks.net John Bush said: "As of now we’re tr…