His afternoon slot will be covered by Sam MacGregor and Danni Diston until September, when Jamie will be rejoined by co-host Katie Thistleton as she returns from maternity leave.
It comes just over a month since the last shake-up of the slot, when Radio 1 bosses announced Jamie would temporarily be joined by his wife, Sophie Habboo.
At the same time, they also announced another social media star, GK Barry, joining the line-up.
The TikToker and I'm a Celeb star's summer-long stint as the weekend afternoon host starts from this Saturday.
