American rapper Eminem is to headline at Slane Castle in County Meath this year, it has been announced.
Eminem promised some 'little surprises' at his show
Castle owner Lord Henry Mountcharles said Eminem would play alongside fellow rapper 50 Cent at the 80,000-capacity natural ampitheatre on 17 September.
Lord Mountcharles said that he agreed with Seamus Heaney's assessment of Eminem as a "lyrical genius".
The Northern Ireland-born poet said in 2003 that Eminem's "verbal energy" had "sent a voltage around a generation".
The concert will be the last date of Eminem's European tour.
Other acts on the bill include D-12, Obie Trice, Lloyd Banks, Young Buck, Olivia, Flipsyde and rapper Stat Quo.
Looking ahead to his Slane appearance, Eminem said he would try to do something different with his show.
"Every tour we try to up the stakes, there will be little surprises here and there. You don't know what may happen," he said.
"We don't have anything picked out yet, all I know is it is going to be big."
Lord Mountcharles said he was "privileged" that Eminem would be playing in the grounds of his castle.
"There was no other choice, I hadn't selected anybody else," he said.
50 Cent is one of the other rap acts on the 17 September bill
"I made it unequivocally clear that it was an artist I wanted to play."
The castle owner added: "This is something completely different and we are proud of that."
The annual event was headlined last year by Madonna, while acts such as U2, Red Hot Chili Peppers and Robbie Williams have performed in previous years.
The castle, 20 miles north of Dublin, has been a historic concert venue since 1981, hosting acts from Queen to Bruce Springsteen during the 1980s.