Kiwi rock is the body of New Zealand rock and pop-rock music that begins with Split Enz's 1972 Auckland formation. The central axis is the Finn brothers, Tim and Neil, whose careers run in a single line through Split Enz, Crowded House, and their solo work. Line-ups run four or five players; early Split Enz was prog-adjacent and structurally complex, while post-1985 Crowded House-era songs are five- or six-minute pop-rock ballads. Lyrics tend to abstract everyday scenes into image-laden verse. Compared to Australian pub rock, the melodic sensibility is 'wetter' — humid, minor-inflected, harmonically richer. Wellington's Shihad (formed 1988) covers the harder side; Auckland's The Datsuns and The Mint Chicks the garage side.

Split Enz formed in 1972 out of the University of Auckland music scene around Tim Finn, Phil Judd, and Mike Chunn. Younger brother Neil Finn joined in 1975. Their 1980 single 'I Got You' from True Colours hit number one in Australia and New Zealand and charted in the UK and Japan — the first time Kiwi rock genuinely broke overseas. When Split Enz dissolved in 1984, Neil Finn founded Crowded House in Melbourne with former Split Enz drummer Paul Hester and Australian bassist Nick Seymour. Their 1986 single 'Don't Dream It's Over' peaked at number two on the Billboard Hot 100, making Crowded House the archetype of the cross-Tasman NZ-Australian rock band.

On Split Enz's 'I Got You,' Neil Finn's melody makes wide intervallic leaps (sevenths and ninths) that Anglo-American pop of the period generally avoided — that specific leap pattern is the Finn brothers' melodic signature. On Crowded House's 'Don't Dream It's Over' the rest before the chorus and the muted Hammond organ create a space that no other 1980s pop songwriter quite reproduced. Shihad's 'Home Again' shows the harder Wellington side — anthemic riffs, arena-scaled choruses.

Crowded House 'Don't Dream It's Over' (1986) for the melodic form fully realised. Split Enz 'I Got You' (1980) for the original Finn-brothers songwriting DNA. Crowded House 'Weather with You' (1991) is a rainy-day standard. Shihad 'Home Again' (1997) for the harder end.

In the late 1970s and 80s Tim and Neil Finn were sometimes referred to as 'the other Beatles' in the Australian and New Zealand press for the strength of their brother-written songs. Crowded House's drummer Paul Hester took his own life in Melbourne on 26 March 2005 aged 46; the band later reformed in 2007. Shihad were briefly renamed 'Pacifier' between 2001 and 2004 in the US market after the September 11 attacks, when the name was thought to sound too Islamic; they later reverted.