The Script will be the next big act to play in Croke Park following the Garth Brooks fiasco last summer - but for one night only.
The Dublin rockers will fill the stadium next June 20.
The news was announced on the same day that the public was invited to make submissions to be included in the review of licensing for outdoor music events.
"We have our licence - I have the certificate right here in my pocket," the band's guitarist Mark Sheehan said.
"We could have sold out five nights in a row but we just chose the one so as not to rock the boat."
Three non-sporting events are allowed to take place in Croke Park each year. If the five Garth Brooks gigs had gone ahead as planned last July there would have been eight in total for 2014.
It is understood that representatives of promoters MCD have already held pre-planning talks with executives of Dublin City Council.
The Script, whose other members are singer Danny O'Donoghue and drummer Glen Power, are only the third Irish act to headline the venue, after U2 and Westlife.
And they said yesterday that they can't wait for the moment when they walk on to the stage.
"We had a little taste of the cake when we supported U2 and Take That, and now we're going to have the whole pie," said Glen.
Frontman Danny said his mother convinced him to play the concert when she said: "Do you know your da used to sell sandwiches outside Croke Park?"
"He didn't have enough money to buy a trolley so he used to put them all in a pram," said Danny.
The band admitted they took some time to make up their minds about playing Croker.
The news of their concert follows the failed Garth Brooks gigs after the country superstar was given the go-ahead for only three of the five planned nights.
After various contingency plans were explored, none of the concerts went ahead because the Nashville singer did not want to disappoint any of his fans by playing only three.
"For us it's five shows or none at all," he said at the time.
Because of planning laws, the decision by the council was irreversible - unless the concert promoter went to the High Court.
Environment Minister Alan Kelly has asked members of the public and all interested groups to make submissions on outdoor music event licensing to his department by November 28.