Sonisphere are set to spoil fans this year adding another three UK festival exclusives to the bill.
Heaven And Hell will be playing their first new tracks for 17 years at the Knebworth House event, while alternative progsters Coheed And Cambria will also make the festival their only UK stop off for 2009.
The Used will make it 19 exclusives for the event when they play the second stage.
Hardcore punks Fucked Up, indie rockers The Ataris, Pepper, Zebrahead and homegrown heroes Hundred Reasons have also been added to the Bohemia Stage.
Speaking about their booking, Hundred Reasons drummer Andy Brew said: "We're really stoked to be added to such a stellar line-up! Nothing beats people telling you they still remember the time you played a festival years and years ago – managing to stand out among a ton of great bands is really special. And with Metallica, NIN, Killing Joke and Anthrax at Knebworth, how can this not be amazing?"
Sonisphere 2009 will take place at Knebworth House between 1-2 August.
Weekend camping tickets are on sale now priced at £157.50 (plus booking fee).??
Other options available include a two-day pass without camping (£132.50), family camping tickets and coach options too.
The full line-up so far is as follows:
LINKIN PARK *
ALICE IN CHAINS ***
THE ATARIS *
AVENGED SEVENFOLD *
BULLET FOR MY VALENTINE ***
COHEED AND CAMBRIA *
COREY TAYLOR * ACOUSTIC SET (UK Debut!)
DIRTY LITTLE RABBITS * (UK Debut!)
FEAR FACTORY (UK Comeback debut)
FIGHTING WITH WIRE
HEAVEN AND HELL ***
LAMB OF GOD **
MACHINE HEAD **
NINE INCH NAILS ***
TAKING BACK SUNDAY ***
THE USED ***
* – ONLY UK SHOW IN 2009!
** – Only remaining UK show in 2009!
*** – Only UK Festival in 2009!