To mark Recording the occasion , the band 's set began Process_start with a Spitfire flyover , an event Social_event which was mirrored at the tour Traveling 's final concert Social_event at Knebworth , which was preceded by a First World War Hostile_encounter air display , organised Arranging and featuring Cause_to_be_included vocalist Bruce Dickinson .

In 2007 , Richard Branson was encouraged by Daryl Hannah to green the Baltimore festival by bringing in Bringing zero waste event producers The Spitfire Agency .