Recorded Music NZ has announced the launch of a new chart that aims to track how quickly songs become popular with Kiwis.
The official Hot40 singles chart is intended to reflect the 'velocity' of singles as they gain sales, increase streams and airplay and pick up new fans.
"The key question the Hot40 chart seeks to answer is how many more fans are interested in a track this week compared to last week?" says Paul Kennedy, manager of Recorded Music NZ Chart.
"To stay in this chart, artists will need to keep gaining new fans. A song will need to keep on growing every week, making it very difficult for anything to enjoy long chart runs."
The new chart will not be replacing the Top40 singles chart, which has tracked the traditional sales of music singles in New Zealand for over four decades.
In addition to the Hot40 chart, the NZ Hot20 chart will also be launched, which applies the same formula to exclusively New Zealand songs.
The new charts debut on Friday.