"Dave and I duetted around the country last year on the Acoustic Church Tour, and then had a blast taking that tour to Australia and the UK," McGlashan says.
"We've discovered that we love working together, so co-headlining Winery 2015 is a dream come true - we'll get to carry on challenging each other and celebrating each other's songs, but we'll also get to plug in [and] turn the amps up."
Audiences can expect to hear all the hits - that's if they can fit them all into a 90-minute show.
Taking on the middle slot are Winery Tour first timers, Supergroove - formidable live performers, fronted by hip hop master Che Fu.
"This summer is gonna be legend, so looking forward to rockin' stages with my SG broski's and of course with Anika, Don, and Yoda [Dave to everyone else]," Che Fu says.
The band reinvented New Zealand music history with the album Traction spawning the hits Gotta Know, Scorpio Girls, You Freak Me, Sitting Inside My Head and Can't Get Enough.
Completing the line-up is official Queen of the Winery Tour Anika Moa. Supremely talented and endlessly entertaining, she loves hitting the road, forming an integral part of the nationwide concert circuit for the past seven years.
"I've fallen in love, out of love, sung with all my might, drunk some of the finest wines, played with some of Aotearoa's best musos and then some," she says.
"It feels good to be back to sing and laugh with my kind of audience. It's also a good chance to play some of the new songs off my very new album set to be released in the New Year."
Tickets and bus/ticket packages go on sale from Tuesday, October 28 at an early bird price of $69 plus booking fee (ticket only), ending November 30.
• Available from The Winery Tour website: winerytour.co.nz, Ticketmaster 0800 111 999 or ticketmaster.co.nz.