Former Taoiseach Bertie Ahern will be one of the guests chatting to Ryan Tubridy.
The Good Friday Agreement will feature strongly on tonight's Late Late Show.
Former Taoiseach Bertie Ahern will share his memories of the historic day.
Nicholas Trimble, the son of former Northern Ireland First Minister David Trimble, will speak of his father's legacy.
Tullamore Artist Shane Gillen's collection of hand drawn portraits commemorating its signatories will also feature.
He says the idea for the project started when he was commissioned to do a portrait of John Hume:
Mayo LGFA Supporting Go Fund Me For M9 Victims
Laois Prize Bonds Player Scoops €50k In Weekly Draw
Former Midlands Garda Sergeant Shares Thoughts On M9 Crash
North Midlands Credit Union Rejects Merger
Gardai Issue Appeal On 30th Anniversary Of Disappearance and Murder of Fiona Pender
Electric Picnic Confirms Final Line-Up Ahead Of Festival
Black Bull Threshing Festival Returns To Offaly This Weekend
Hundreds Gather For Funeral Of Joey Carthy In Kildare