Gibbston Valley Winery Summer Concert goers (from left) Peter and Sandra Buckley and Liz and Gary Bayne. Photo: Peter McIntosh : Gibbston pilgrimage now a summer ritual

Aussie rocker Mark Seymour, of Hunters & Collectors, performs at the Gibbston Valley Winery Summer Concert last year. Photo: Otago Daily Times : Gibbston pilgrimage now a summer ritual

The English-born frontman and his band were in the line-up at the Gibbston Valley Winery summer concert in 2017. Photo: Jo Boyd Riverlea Photography : Gibbston pilgrimage now a summer ritual

REO Speedwagon on stage at the 2016 event. Photo: Greenstone Entertainment : Gibbston pilgrimage now a summer ritual

The Orchestra — former members of Electric Light Orchestra — perform at the 2018 show. Photo: Greenstone Entertainment : Gibbston pilgrimage now a summer ritual

Liz and Gary Bayne (centre) and Peter Buckley do not let the wet weather dampen spirits at last year's concert. Photo: Supplied : Gibbston pilgrimage now a summer ritual

Alicia McLean at the 2017 concert. Photo: Supplied GIG : Gibbston pilgrimage now a summer ritual