Eight-year-old Scott Lowe and his cousin Grace Lowe from Athlone were the toast of the nation as they were the stars of The Late Late Toy Show last night.
Exactly a year ago, Scott donated bone marrow to his now six-year-old cousin Grace who had leukaemia.
The cousins' mothers, Bernie and Arlene, were in the audience and brought on stage with Ryan Tubridy to tell the remarkable story and to watch footage of a Late Late Show team member apparently visiting the Lowe home in Annagh, Ballykeeran, to present gifts to the children.
Ryan they revealed the footage was not live, as the mothers had believed, but was pre-recorded and invited Scott and Grace on stage to join their shocked mothers.
Bernie explained the two cousins were inseperable.
Speaking to Ryan Tubridy, a clearly surprised Scott said that he underwent the treatment because: "I wanted to save her life."
Scott Lowe on stage during The Toy Show.
Irish rugby players Rob Kearney, Sean O'Brien and Tadhg Furlong then joined the Lowes on stage to present gifts to Scott, who is a big rugby fan.
Rob told Scott that rather than rugby players being heroes, he was the real lilfe hero.
The wider Lowe family were then given a family holiday to Orlando in Florida whilst the nation busily reached for the box of tissues to wipe tears from collective eyes.