Jay, 10, was invited by Accies to take in the match – and he gave both sets of players a visit before scoring a penalty in front of his fellow Hoops fans at half-time.
The youngster – who has Down’s syndrome – became an internet hit last year when he was plucked from the crowd by ex-Celt Georgios Samaras as the Scottish champions celebrated their title win.
He was honoured by Greek journalists alongside Samaras in December.
And he’s had another day to remember today as he got the VIP treatment from everyone at New Douglas Park.
His dad Martin was on hand to capture every big moment and he posted the following outstanding videos on Facebook:
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He also got inside the Accies dressing room and was given great treatment by Martin Canning’s men:
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But the best video comes half-time in the game as Jay was treated to the Celtic roar after scoring two goals in front of the away support:
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A memorable day for the Celtic fan ended on a high note as he watched his team beat Hamilton thanks to goals from Adam Matthews and Liam Henderson.