Van Morrison, Mary Robinson, Tolü Makay, and Ivana Bacik are all taking part in the special programme.
TG4 will celebrate the 80th birthday of President Michael D. Higgins with a one-hour programme celebration of his life and of his time as president of Ireland.
The programme will feature an impressive line-up of Ireland's finest poets, singers, musicians, thinkers, playwrights, and dancers.
Announced to be taking part in the programme are:
Van Morrison
Tolü Makay
Iarla Ó Lionáird
Steve Cooney
Frankie Gavin
Mairtín O’Connor
Laoise Kelly
Sibéal Ní Chasaide
Séamus Ó Flatharta
Emma Corbett
Sibéal Davitt
Paddy Keenan
Thomas McCarthy
Mary Robinson
Alan Esslemont
Garry Hynes
Darach Mac Con Iomaire
Gearóid Ó Tuathaigh
Ivana Bacik
The programme will air on TG4 on Sunday, April 18 at 9.30pm, and will also be available to watch worldwide via tg4.ie.