tour dates 1 ^ = pre - ozzfest date at the buffalo chip campground 2 ^ = rescheduled from december 12 , 2010 3 ^ = rescheduled from december 10 , 2010 4 ^ = rescheduled from january 30 , 2011 5 ^ = rescheduled from september 16 , 2010 6 ^ = cancelled personnel ozzy osbourne lead vocals gus g guitar blasko bass tommy clufetos drums adam wakeman keyboard , additional guitar setlist killer of giants was played on the tour but was dropped off the setlist after several shows .