But performances from a number of artists livened up the ceremony - including strong vocals from rising pop star Robinson, who sang her hit Nothing to Regret. The best performance of the night came from Jess B, who recruited DJ half-queen and and a group of incredible backup dancers to deliver a viscerally thrilling display of her hit Set it Off.
Walker had his own turn performing, joined by a stunning troupe of backing vocalists. Earlier, Drax Project offered the audience an taste of their nominated song Woke Up Late, a strong performance bolstered by a dazzling light display and confetti blasts.
Williams added two Tuis to his shelf tonight, winning Best Solo Artist and Album of the Year for his critically acclaimed sophomore record Make Way For Love. Williams had already received Best Music Video for Vampire Again at the 2018 Artisan Awards.
Other multi-wins included Drax Project, who were recognised as Breakthrough Artist of the Year while also winning Single of the Year for their hit Woke Up Late.
Experimental soul artist Troy Kingi won both Best Māori Artist and Best Soul/R&B Artist following his acclaimed concept album Shake That Skinny Ass All the Way to Zygertron.
Alien Weaponry, the young rock band blending thrash metal and te reo Māori, opened the awards with a performance of Kai Tangata. The group was also awarded the Tui for Best Rock Artist.
Brooke Ligertwood, née Fraser, received the 2018 International Achievement award; the singer won a Grammy earlier this year for Best Contemporary Christian Music Performance/Song through her work with the international church Hillsong.
Kimbra won Best Pop Artist off the back of her dynamic new record Primal Heart, while alt-rockers Unknown Mortal Orchestra won Best Alternative Artist following their acclaimed fourth record Sex and Food.
Hip-hop supergroup SWIDT followed up their 2017 wins by taking out Best Hip Hop Artist, while Best Electronic Artist was awarded to Chores and Best Roots Artist to Sons of Zion.
Hip-hop stars Upper Hutt Posse were inducted into the New Zealand Music Hall of Fame and received the 2018 Legacy Award.
Overall, with no major pop artists up for contention this year, the awards felt like a more quiet affair than normal. But the love for New Zealand was evident throughout the night, in both acceptance speeches and presentations.
Presenter Suzy Cato offered the audience a nostalgic treat, singing the key lines from her iconic theme tune See You Later live on stage.
The whole reason for such a ceremony was perhaps best summed up by presenter Jesse Mulligan, who put it beautifully: "at some point my favourite New Zealand artists just became my favourite artists."
FULL LIST OF NOMINEES/WINNERS
Album of the Year
Marlon Williams - Make Way For Love
Alien Weaponry - Tu
Julia Deans - We Light Fire
Six60 - Six60
Tami Neilson - Sassafrass!
Unknown Mortal Orchestra - Sex & Food
Single of the Year
Drax Project - Woke Up Late
Mitch James - 21
Robinson - Nothing To Regret
Six60 - Don't Give It Up
Sons Of Zion - Drift Away
Unknown Mortal Orchestra - Hunnybee
Solo Artist
Marlon Williams - Make Way For Love
Julia Deans - We Light Fire
Kimbra - Primal Heart
Tami Neilson - Sassafrass!
Group
Six60 - Six60
Alien Weaponry - Tu
Drax Project - Noon
Unknown Mortal Orchestra - Sex & Food
Breakthrough Artist
Drax Project
JessB
L.A.B.
Robinson
Pop
Kimbra
Drax Project
Six60
Alternative
Unknown Mortal Orchestra
Marlon Williams
Wax Chattels
Rock
Alien Weaponry
Cairo Knife Fight
Skinny Hobos
Hip Hop
SWIDT
JessB
Kings
Soul / R&B
Troy Kingi
Israel Starr
Vince Harder
Roots
Sons of Zion
Katchafire
Tomorrow People
Maori
Troy Kingi
Alien Weaponry
Katchafire
Electronic
Chores
Arma Del Amor
Boycrush
Classical
Eve de Castro Robinson
Henry Wong Doe
Michael Houstoun
Worship
Equippers Revolution
EFKS Te Atatu Junior Youth
Kane Adams
Children's
Levity Beet - My Best Friend Jake Is A Cyborg
Folk
Albi & The Wolves - One Eye Open
Pacific
Ladi6 - Royal Blue 3000
Country
Reb Fountain - Hopeful and Hopeless
Jazz
Umar Zakaria – Fearless Music
Highest Selling NZ Album
Six60
Highest Selling NZ Single
Six60 – 'Don't Give It Up'
Radio Airplay
Six60
International Achievement
Brooke Ligertwood, née Fraser
Legacy Award
Upper Hutt Posse