Hozier and the Kaiser Chiefs are to support American rock band Foo Fighters at Slane Castle next year.
The concert will take place on May 30 with a further two acts being added to the line-up in the coming months.
The news comes after Dave Grohl and the Foo Fighters shifted an impressive 300,000 tickets for their UK concerts in one day, including two sold-out gigs at Wembley Stadium.
Slane Castle's legendary open-air concert was cancelled in 2014, with owner Lord Henry Mountcharles admitting he simply couldn't find an act big enough to trump 2013 performers Bon Jovi and Eminem.
"It proved difficult to get acts this year that we really wanted," Mountcharles said at the time.
"I've always said if I don't find what I want, it won't go ahead. Slane is a special venue."
But Mountcharles, also known as the eighth Marquess Conyngham, and music promoters MCD are confident this year's line-up will appeal to music fans.
The presence of Co Wicklow-born musician Hozier on the line-up will be a draw for many.
The singer's debut album went straight to number one in the Irish charts in September and has remained in the top five since then.
Thin Lizzy headlined the inaugural concert in the summer of 1981 and since then the Rolling Stones, Madonna, Queen, Bob Dylan, David Bowie, U2, Oasis and REM have all taken to the Slane stage.
Tickets for the gig go on sale next Monday for €79.50 each.