The Kooks will be joined by MGMT on the Sunday of this year's Oxegen Festival, which takes place at Punchestown Racecourse, Kildare, Ireland from 11-13 July.
Manic Street Preachers and The Tings Tings have also been added to the bill on Saturday alongside Justice who will appear on the Dance Stage.
UNKLE and David Guetta have also been confirmed for the Dance Stage on Friday and Sunday respectably.
R.E.M., Rage Against The Machine and The Verve will headline the Irish bash with Kings Of Leon, The Raconteurs, Ian Brown, Aphex Twin and The Chemical Brothers performing over the weekend as well. Click HERE for the latest line-up.
Tickets for the event have sold-out.