Coldplay and the Foo Fighters have been announced to headline Sunday and Saturday respectively at this year's Nokia IW Festival.
Lindsay Weatherston, from promoters Solo, said: "Coldplay and Foo Fighters are two of the biggest acts in the world today.
"It is truly fantastic that in only our fifth year we have attracted acts of this stature. We really feel that the IW Festival is now firmly back on the map. The Island should feel very proud."
She added: "I watched Coldplay at Glastonbury last year, thinking how incredible it would be to have them at our festival. They are the perfect IW Festival band."
The festival is to be staged at Seaclose Park, Newport, from Friday, June 9, to Sunday, June 11.
Acts previously announced include Friday headliners The Prodigy and Placebo, along with Goldfrapp and The Rakes; Saturday acts Primal Scream, Editors, Dirty Pretty Things, The Kooks, The Upper Room and 747s; and Sunday performers Richard Ashcroft, Lou Reed, Maximo Park and Kubb.