South Aucklander Chris Traill has spent more than 40 years taking ‘incredible’ pictures of rock concerts, music festivals and cultural festivals, Stuff reports. Now, he’s been given a special opportunity to put them on display. Traill’s exhibition piece, a “huge” six-metre-wide billboard, is hanging on the corner of Osterley and Putney Way, behind Manukau’s Westfield Mall, where it will be displayed until Thursday.