Rapper Eminem is set to headline this year's Oxegen festival.
Thousands of people are expected to descend on Punchestown Racecourse in Kildare over the weekend of July 8 when the festival kicks off.
Others announced today include Jay-Z, the Black Eyed Peas, Faithless, FandTM, Sterophonics and La Roux.
Tickets are on sale from March 12.