The singer's father comes from Ballycumber.
An Offaly woman says it was amazing to see Tom Grennan wear her county jersey on stage at Electric Picnic.
Ashling Harte says with the help of her friend Tom McDermott they got the singer's attention.
The 'Little Bit of Love' singer, whose dad hails from Ballycumber, donned the colours for the final song of his performance on Sunday night.
Ms Harte says while it was the highlight of the weekend, she is left wondering if she will ever get the jersey back:
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