Rochelle Humes, who presents on Heart weekends, is taking a break from her show to concentrate on television work.
She began a weekend show on Heart in January 2018 after covering the Big Top 40 with her husband Marvin Humes.
The Saturdays singer also co-hosted the Global Awards in 2019 alongside Roman Kemp and Myleene Klass.
Rochelle says: “It doesn’t really feel like goodbye as I’ll continue to see all of the regular Heart presenters and producers that I can now call my friends.
“My husband Marvin will still work in the same building, so I certainly won’t be a stranger. I have had an absolute blast working on Heart and hope my listeners have enjoyed it as much as I have.”
It’s understood that more changes to the Heart schedule will be announced next week.