The Portugese festival takes place in Lisbon July 13 - 15 2012.
Also among the first acts announced are Florence And The Machine, Snow Patrol and Mumford and Sons.
It will be the sixth time the festival has taken over Lisbon - with 90 acts playing over the three days.
Tickets are on sale now.
First acts announced:
Florence And The Machine
Mumford and Sons
The Stone Roses