Rod Stewart, 79, is joined by his son Aiden, 13, while cheering on his beloved Celtic during their 3-0 victory against St Mirren

Rod’s sweet post comes after the star praised King Charles for speaking publicly about his cancer diagnosis. The King announced he had been diagnosed with a form of cancer last month and is currently undergoing treatment.Singer Sir Rod revealed in 2019 he had suffered prostate cancer for three years and that he is now in the clear. During an appearance on Loose Women on Friday, Sir Rod praised the King for being open about his illness.

Sir Rod said: ‘Let’s take our hats off to our King, who has made it publicly known. We are prostate sisters!”

The star was on the ITV show with fellow musician Jools Holland, 66, with the pair working on new collaborative LP Swing Fever together.