See the next big thing at Reading and Leeds
Marina and the Diamonds, who are rapidly making a name for themselves in the music business, will be among those playing on the Festival Republic Stage.
Organisers believe this is a significant slot, as it has been occupied by a number of stars before they became big acts.
Florence and the Machine, for instance, have played the stage before, along with Glasvegas, Coldplay, Arctic Monkeys and Muse.
"This really is the place for anybody looking to be the first to spot the next wave of important artists," organisers added.
Of course, fans of Marina and the Diamonds could also see their favourite band performing during their UK tour later in the year.
They will kick off in Norwich on October 20th 2010, before calling at cities such as Birmingham, Manchester, Glasgow and Bristol.
By Jemma Howard