St Colman's College in Fermoy has made it to the number one spot in the Irish iTunes charts.
The students in Transition Year in the school have recorded a charity single for Our Lady's Children's Hospital in Crumlin, Dublin.
The students did a cover of 'Lean On Me' with three and a half year old featuring in the video, Cahill had previously battled cancer at just two years of age.
The school in Cork have labeled Tom as a "real life superhero."
Watch the cover here;