"Our listeners can continue to enjoy Jase & PJ's show for the remainder of the year and we are currently working with them on plans to keep them involved in the ZM family moving forward."
Jase and PJ recently became the country's most popular drive radio show with Kiwi millenials (18-34), according to the GFK radio survey released earlier this month.
Hawkins moved to New Zealand in 2015 from his native Australia, where he made his name in radio working on the top-rating Kyle and Jackie O Show.
Harding formerly hosted ZM's night show, before taking on drive time with her Aussie co-host.
The pair have made headlines numerous times in the past two years for their often-extreme pranks, including this year's 53-hour on-air marathon.
Last year, they spent 25 hours chained to one another in an awkward hug stunt and Harding recently made headlines after leaving a particularly awkward voicemail for Team New Zealand star Peter Burling.