sentences:  The album was finished in June, and the band went on the All Hope Is Gone World Tour on July 9, 2008.Slipknot's fourth album, "All Hope Is Gone", was released on August 20, 2008, debuting at number one on the "Billboard" albums chart.The album produced five singles; "All Hope Is Gone", "Psychosocial", "Dead Memories", "Sulfur" and "Snuff".