MIRIAM O'Callaghan will cover Pat Kenny's radio show later this month.
The popular Primetime and Saturday Night With Miriam host will step into Pat's shoes later this month as he enjoys a family break in Portugal.
Long-time stand-in Myles Dungan replaced veteran broadcaster Pat last week on his daily Radio One current affairs programme.
But this week, mum-of-eight Miriam will sit in the hot-seat.
Miriam -- who is enjoying huge success with the seventh series of her Saturday night chat show -- is said to be thrilled about the temporary move.
"I am delighted and I am looking forward to doing it," she said.
Miriam's temporary role comes just weeks after the JNLR figures showed she recorded an increase of 8,000 listeners for her Miriam Meets radio programme, which is broadcast every Saturday.
Her popularity across RTE television and radio shows no signs of abating.
And if Ryan Tubridy were to make a permanent move across the water to the BBC, many would tip Miriam as the next host of the Late Late Show.
She was one of the frontrunners three years ago when Pat Kenny announced his intention to step down.
Tubridy is currently covering Graham Norton's BBC 2 radio programme and has received a warm reception. The stint lasts for eight weeks and will finish mid-September.
Frontline host Pat is delighted with his temporary replacement. "He is aware of Miriam's stand-in role and is happy with the choice," RTE said.