Grammy Award winning Keenan was intrigued to see how the relatively young Kiwi wine industry produces such a first-class, world-renowned product.
He is a vibrant addition to the lineup of keynote speakers including experts Jancis Robinson OBE MW and Ken Ohashi MW.
His presence aims to bring unique and fresh perspective to the celebration on Wellington's waterfront.
"Adding the artistic talents of MJK, who is initially from another expressive medium, to our event is a real point of difference and allows to really challenge our boundaries," Pinot Noir NZ chairman Ben Glover said.
"We're keen to explore how personal experiences add richness to the industry's evolution, which [his] story of music and wine emulates."
Pinot Noir NZ 2017 is the biggest festival of its kind, running for three days from January 31 next year.
The programme was designed to be an aspirational and thought-provoking exploration of New Zealand Pinot Noir.
Held every four years, it gathers 117 producers from the country's diverse Pinot Noir producing regions and showcases more than 300 wines.
• Limited registrations for Pinot Noir NZ 2017 open on March 1 2016. Bookings can be made at pinotnz.co.nz