On July 11th, Iron Maiden soared through their only UK concert of the year at Knebworth Park in celebration of their 50th anniversary. The heavy metal stalwarts played at the iconic venue near Stevenage alongside The Darkness, The Hu, Airbourne, and The Almighty, during a weekend billed as “Eddfest”. “It’s going to be one for the history books… in a really historic venue,” said Iron Maiden’s manager, Rod Smallwood, at the time of the announcemen…