Organizers of the inaugural Sonisphere Festival in the U.K. are offering a deal on a ticket and game bundle that will allow Metallica fans to pre-order "Guitar Hero: Metallica" at a discounted rate.

An offer for free coach travel to the site at Knebworth from Manchester, Birmingham and London has also been arranged with coach operator National Express. Furthermore, Sonisphere organizers say they have removed booking charges on weekend and weekend camping tickets; customers who have already paid will receive an £11.50 ($17.54) refund per ticket.

"Guitar Hero: Metallica" is out on May 29, with a recommended retail price of £49.99 ($76.23) for the Xbox 360 and PlayStation 3 and £39.99 ($61) for Wii. However a weekend ticket for the Aug. 1 and 2 Sonisphere Festival will cost £152.50 ($232.66) with a pre-order for the game, compared to £132.50 ($202.17) for a ticket alone - a saving of £29.99 ($45.76) on the game's maximum RRP. There are similar savings on offer when the game is ordered with a weekend camping ticket and there is potential saving of £39.99 ($61.02) if fans order the ticket bundled with the game and guitar.

"Guitar Hero" is the Sonisphere Festival sponsor and there will be a competition for festival-goers to have the chance to play the game on the main stage and meet Metallica.

In the U.K., Metallica headlines the 60,000-capacity Sonisphere on Aug. 2 and also headlines Sonisphere shows this summer in Holland, Spain, Finland, Sweden and Germany. Linkin Park headlines at Knebworth on Aug. 1; other acts playing the new rock festival over the weekend in the U.K. include Nine Inch Nails, Avenged Sevenfold, Machine Head, Bullet For My Valentine, Taking Back Sunday, Feeder and Alice In Chains.

In March, Sonisphere also launched a ticket deposit scheme for the U.K. leg of the festival.

The festival has been launched by Stuart Galbraith, series producer and director and CEO of promoter Kilimanjaro Live, and John Jackson, festival creator and director and Metallica's booking agent at K2 since 1985. AEG, which backs Kilimanjaro, is also supporting the new festival.