Steven Tyler and co are poised to launch live movie Aerosmith Rocks Donington 2014 in US cinemas. Shot during their 19-song headline set last year, it features tracks from across the veteran outfit's career. It arrives in the UK in May.

Hamilton says: "Every time we've been there it's been the funkiest, most earthy audience on the tour. Usually the crowd's been there are few days and it's been raining a few days.