Caden's school's Christmas song has climbed to number 16 in the iTunes charts and is ranked above Adele's Skyfall, and tracks by Calvin Harris, Taylor Swift and Rita Ora.
Ladywell Primary in Motherwell plans to donate 90% of proceeds from the song – O Holy Night – to the Meningitis Research Fund in memory of Caden, who was diagnosed with meningococcal septicaemia, a type of blood poisoning caused by the same kind of bacteria found in the most common form of bacterial meningitis.
The remaining 10% will go to school funds. Pupils and staff had decided to record two songs on CD for Christmas to raise money for the school. Pupils suggested the choir's version of O Holy Night should be uploaded to iTunes following Caden's death to raise money for the charity. Headteacher Pat Ashworth said: "We hoped to sell a few hundred downloads to parents and family but we never expected it to go so high into the charts in such a short time."
On Wednesday details of Caden's funeral were posted on Facebook. The service will be held in Motherwell tomorrow.