Unknown Mortal Orchestra will celebrate the release of their fourth album with a four-date New Zealand tour.

The New Zealand alt-rock outfit, headed by former Mint Chick Ruban Nielson, will perform at The Foundry in Christchurch on September 5, Dunedin's Glenroy Auditorium on September 6, Wellington's Hunter Lounge on September 7 and Auckland's Town Hall on September 8.

They'll be playing support of the group's fourth album, Sex + Food.

Tickets for all shows are on sale from April 6.