Rock giants The Manic Street Preachers are singing "everyone must go" and see them at Oxegen.
The stars have signed up to the three day music festival at Punchestown, Co Kildare, which will feature some of the biggest names in music.
The Design For Life and Everything Must Go hit-makers will thrill a 50,000 crowd, joining acts including Amy Winehouse, REM, and Rage Against The Machine for Ireland's biggest summer festival.
Other top acts including The Kooks, Bell X1, Cat Power, Feeder, MGMT, Paddy Casey, Powder finger, Groove Armada, Declan O'Rourke and Tom Baxter were also added to the bill yesterday.
The music starts on July 11 and though most tickets have sold out, a few single-day passes are still available.
Welsh rockers the Manics have scored a string of hits since first breaking into the charts in 1991.
Songs including If You Tolerate This Your Children Will Be Next, Tsunami, The Masses Against The Classes and Your Love Is Not Enough rocketed to the top of the charts around the world.
Lead singer James Dean Bradfield claimed Ireland is their ultimate live music experience.
He said: "I say it time after time, but we always reach an incredible level at the concerts in Ireland.
"The fans give you so much back and you reach that extra gear. There's nowhere else like it in the world."
The dance line-up also added headliners UNKLE, Justice and David Guetta yesterday.
A show spokesman said: "This year's bill is the strongest ever and it really is shaping up as the top music festival in Europe."