Once labelled by the legendary British radio DJ John Peel as "one of the 10 best bands in the world you've never heard of", HDU emerged from Dunedin in 1994. They outgrew the confines of their southern base and moved to Auckland where word of the band's charged live performances spread. Their demos earned them a cult following on student radio and a deal with Flying Nun. The "psychedelic punk" rockers have released three albums, including 2008's Metamathics.