In light of his illness and Slayer's upcoming participation in the Australian Soundwave Festival tour that was set to begin on February 26, 2011, the band made the decision to play the dates without Hanneman, and on February 16, 2011, brought on Gary Holt (Exodus) to fill in for him. Pat O'Brien (Cannibal Corpse) joined as Slayer's temporary second guitarist when Holt left the tour to play with Exodus. In 2012, bandmate Tom Araya announced a recovery from the disease. However, in February 2013, King revealed that Hanneman was still battling health issues that prevented him from performing.