The Stranglers, Pendulum and Paolo Nutini are the first in a new wave of acts to be confirmed for Festival Internacional de Benicassim 2011, which takes place from 14-17 July in Benicassim, Spain.
Professor Green, The Juan Maclean Congotronics Vs Rockers, Atom Rhumba and The Morning Benders have also joined the line-up for the 17th anniversary of the four-day festival.
Jerry Fish And The Mudbug Club, Jack Beats and Zombie-Zombie are also set to perform.
O Emperor Spectrals, And So I Watch You From Afar and The 1945 are the last of the new additions.
They join Arcade Fire, Arctic Monkeys, Mumford And Sons and The Streets on the line-up for the festival, which is within walking distance of a beach and a water park.
Benicassim tickets are available now at £160 for four days including camping.