Earlier in the week inthemix spread the word that Belgium’s annual Tomorrowland festival would once again be going all out in 2011 with a first lineup announcement featuring Carl Cox, Fedde Le Grand, Sasha, Sander Van Doorn and world-beating headliner David Guetta.

Now the action’s ramped up again with festival organisers adding a couple more big guns to the list including Tiesto and Faithless. Perhaps you’ve heard of them?

With Tiesto taking mainstage duties on the second day of the July 22-24 festival, Faithless will bring their Sound System setup to the bash, featuring a stripped-back version of the show just seen in Australia at Good Vibrations with just Maxi Jazz on vocals while Sister Bliss works out a deep palette of old and new Faithless tunes from behind the decks.

Also added in this latest flurry of information from promoters ID&T is the Global Underground stage set to feature GU regulars Dave Seaman, Satoshi Tomiie and Anthony Pappa.

Check out the latest typically European promo video for Tomorrowland below as well as the list of artists on the bill.

Tomorrowland 2011 lineup (in no particular order):

David Guetta
Tiesto
Faithless (Sound System)
Sander Van Doorn
Adam Beyer
Astrix
Cosmic Gate
Sound Of Stereo
AutoErotique
Sasha
Fedde Le Grand
Matthias Tanzman
Dubfire
Henrik Schwarz
Aly & Fila
Joachim Garraud
Growling Mad Scientists
Pet Duo
Simon Patterson
Dixon vs Âme
Ben Sims
Frequency 7
Seth Troxler & Bill Patrick
M.A.N.D.Y
Above & Beyond
DJ Rush
Ferry Corsten
Marcel Dettmann
Afrojack
Avicii
Dave Seaman
Satoshi Tomiie
Anthony Pappa