It took place on 19 November 2015 at Vector Arena in Auckland and was hosted by Taika Waititi.
The awards show was broadcast live on TV3, and hosted by Sharyn Casey and Dominic Bowden.
2015 marks the 50th anniversary of the awards from its origins in 1965 as the Loxene Golden Disc.
Lorde won Single of the Year and shared the International Achievement award with Savage.
This was criticised by previous NZMA winner Tama Waipara, who described the incident as "disgusting and it's not surprising but it is extremely disappointing and moreover, it's unconstitutional."