Madonna and The Kooks have been announced as headliners for this year's Radio 1 One Big Weekend.
The Fratellis, Usher, Duffy, The Feeling, Robyn and The Hooisers will also join previously announced Scouting For Girls on the main stage on Saturday (10 May).
Joining The Kooks on the Sunday (11 May) will be The Enemy, Nelly, Goldfrapp, Pigeon Detectives, Newton Faulkner, One Republic and Adele.
Radio 1's One Big Weekend will be held at Mote Park, Maidstone in Kent from 10-11 May with the In New Music We Trust and Outdoor Arena’s acts still to be announced.
Tickets for the festival are free, but those wishing to attend must register first and lucky revellers will be picked at random based on their postcode. Click HERE to register.