Ryan Tubridy has promised that tonight's Late Late Show tribute to Gay Byrne will be "really special".
The veteran broadcaster passed away on Monday, November 4, after a long illness.
Tubridy saluted his "great friend" and "magnificent mentor" on his RTÉ Radio 1 programme on Tuesday morning ahead of tonight's show. He described the Late Late tribute programme as "a happy wake".
Speaking to The Today Show's Brenda Donohue ahead of the show, Tubridy said: "Gay was a once off, so tonight is a once off.
"It makes perfect sense that we gather the troops, gather the family, the friends and to say a final thank you. Tonight isn't going to be maudlin, or morose, or mawkish, it's going to be upbeat, it's going to be fun."
The 90-minute live special on RTÉ One at 9:35pm will feature contributions from Gay Byrne's friends and colleagues across the world of entertainment and beyond, including Bob Geldof, Andrea Corr, Pat Kenny, John Sheahan and Mary McAleese.
Also appearing will be President Michael D Higgins, Joe Duffy, Sharon Shannon, John Sheahan, Finbar Furey, Tommy Tiernan, Pat Shortt, Eamon Dunphy, Twink and Mary Black.