Placebo and Timo Maas join Red Hot Chili Peppers and The Who in the line-up for OXEGEN 2006.
Placebo will take to the stage on Sunday 8 July as part of their Meds world tour. 'Meds', the band's fifth album, is due for release in March.
Timo Maas has just been added to the Spirit Dance Arena on Saturday 8 July.
Maas' second album features guest appearances from Placebo's Brian Molko.
As well as being renowned for his classic crossover hits, Maas has also worked with stars including Madonna and Depeche Mode.
OXEGEN will take place at Punchestown on Saturday 8 and Sunday 9 July, subject to licence. Tickets go on sale Friday 3 March at 8am.