A Celtic superfan was left 'so happy' when Paolo Nutini wore a shirt dedicated to him.

The Hoops-daft singer performed a concert at Thomond Park in Limerick, Ireland on Saturday, July 13 wearing a top depicting well-known fan Jay Beatty. 

Paolo's choice of attire featured Jay's face and the slogan 'Don't worry, be happy.'

Family members of Jay shared photos of the Last Request hitmaker wearing the outfit and meeting Jay himself, to which Jay responded with two words: 'so happy'.

Fans were loving the interaction, with one commenting: "Such a beautiful photo!"

Another wrote: "Amazing pic."

A third added: "Jay is just the sweetest boy."

A fourth said it was a "special moment" between the pair.