The Lucan teenagers – fresh from representing Ireland at Eurovision – are expected to play in front of thousands of fans in the Diamond of the town on June 30th.
Summer festival organiser Ernan McGettigan said today: “We are looking forward to the event and getting Jedward to play is a real coup for our small committee.
“We are expecting a very large turn-out.”
The gig is on the last day of the school term – and is set to attract fans from all over the county and beyond.