Brit metal legends headline final day of Knebworth event
Singer says fans 'deserve a rock 'n' roll show not a cash cow'
Metal veterans also offer up free download as a taster for 'The Final Frontier'
'The Final Frontier' is the legendary rock group's fifteenth album
Alice Cooper and Slayer also on the bill of Knebworth event
Guitarist reveals fishing secrets to Angler's Mail
'Iron Maiden: Flight 666' will be released in May
The band's manager chastises the rioters
111 arrested during gig chaos
'Flight 666' is to be shown in over 400 cinemas worldwide in one day