HARD ROCK LEGENDS DEF LEPPARD ISSUE UNRELEASED SINGLE AS EXCLUSIVE DOWNLOADABLE CONTENT FOR GUITAR HERO® III: LEGENDS OF ROCK

Quintessential Def Leppard Track Pack Releases on April 24, 2008

SANTA MONICA, CA – April 17, 2008 – Rock heavyweights Def Leppard have partnered with Activision Inc.’s (Nasdaq: ATVI) Guitar Hero® III: Legends of Rock on an epic three-song track pack that will give fans an exclusive opportunity to sample the band’s #1 new radio single, “Nine Lives,” five days before their upcoming studio album Songs from the Sparkle Lounge releases on April, 29, 2008. The single is the result of Def Leppard’s groundbreaking collaboration with country music legend Tim McGraw, and will be featured on their highly anticipated upcoming record Songs from the Sparkle Lounge, the band’s first new studio release since 2006’s YEAH , which begins yet another remarkable new chapter in the band’s 30-year recording career.

The track pack also features live versions of “Photograph” and “Rock of Ages,” two of Def Leppard’s most beloved chart-toppers from their multi-platinum Pyromania album.

“Being involved with Guitar Hero is very exciting for us and adds a whole new layer of appreciation," says Joe Elliott, lead singer, Def Leppard. "I know from personal experience how much more you get into the music by playing the game - which is why we were keen to explore this opportunity. Guitar Hero is extremely popular with all kinds of music heads, which includes a lot of our fans- and we think releasing ‘Nine Lives’ this way first is just fantastic!"

“We are extremely thrilled to be partnering with Def Leppard, who are true rock icons,” said Dusty Welch, Head of Publishing for RedOctane. “The band’s participation in offering ‘Nine Lives’ to fans exclusively via Guitar Hero III downloadable content before their album hits store shelves, before the single is available for purchase on iTunes, demonstrates the level of commitment these legendary artists are making to Guitar Hero and how the franchise is transforming the music landscape.”

The track pack will be available for Xbox LIVE® Marketplace for Xbox 360® video game and entertainment system from Microsoft and in the PLAYSTATION®Store for the PLAYSTATION®3 computer entertainment system on April 24, 2008.

Guitar Hero III: Legends of Rock offers the ultimate rock experience with new wireless guitars, freshly added content and features including a multiplayer action-inspired battle mode, grueling boss battles, a host of exclusive unlockable content and visually stunning rock venues. Expanded online multiplayer modes allow axe-shredders worldwide to compete head-to-head for true rock status as they riff through a star-studded soundtrack including master tracks by legendary artists such as Aerosmith, Guns 'N' Roses, The Rolling Stones, Beastie Boys, Rage Against the Machine and Pearl Jam, as well as original songs by guitar icons Slash and Tom Morello. Guitar Hero III: Legends of Rock is now available and is rated "T" for Teen by the ESRB. For more information visit www.guitarhero.com.

About Activision, Inc.

Headquartered in Santa Monica, California, Activision, Inc. is a leading worldwide developer, publisher and distributor of interactive entertainment and leisure products. Founded in 1979, Activision posted net revenues of $1.5 billion for the fiscal year ended March 31, 2007.

Activision maintains operations in the U.S., Canada, the United Kingdom, France, Germany, Ireland, Italy, Sweden, Spain, the Netherlands, Australia, Japan and South Korea. More information about Activision and its products can be found on the company's World Wide Web site, which is located at www.activision.com.

Cautionary Note Regarding Forward-looking Statements: Information in this press release that involves Activision’s expectations, plans, intentions or strategies regarding the future are forward-looking statements that are not facts and involve a number of risks and uncertainties. Activision generally uses words such as “outlook”, “will,” “could,” “would,” “might,” “remains,” “to be,” “plans,” “believes”, “may”, “expects,” “intends,” “anticipates,” “estimate,” future,” “plan,” “positioned,” “potential,” “project,” “remain,” “scheduled,” “set to,” “subject to,” “upcoming” and similar expressions to help identify forward-looking statements. Factors that could cause Activision’s actual future results to differ materially from those expressed in the forward-looking statements set forth in this release include, but are not limited to, sales of Activision’s titles, shifts in consumer spending trends, the seasonal and cyclical nature of the interactive game market, Activision’s ability to predict consumer preferences among competing hardware platforms (including next-generation hardware), declines in software pricing, product returns and price protection, product delays, retail acceptance of Activision’s products, adoption rate and availability of new hardware and related software, industry competition, rapid changes in technology and industry standards, protection of proprietary rights, maintenance of relationships with key personnel, customers, vendors and third-party developers, international economic and political conditions, integration of recent acquisitions and the identification of suitable future acquisition opportunities the timing and successful completion of the combination of Vivendi Games with Activision, the combined companies’ success in executing planned strategies and achieving assumed synergies and cost savings, and foreign exchange rate changes. Other such factors include additional risk factors identified in Activision’s most recent annual report on Form 10-K and subsequent quarterly reports on Form 10-Q. The forward-looking statements in this release are based upon information available to Activision as of the date of this release, and Activision assumes no obligation to update any such forward-looking statements. Forward-looking statements believed to be true when made may ultimately prove to be incorrect. These statements are not guarantees of future performance and are subject to risks, uncertainties and other factors, some of which are beyond our control and may cause actual results to differ materially from our current expectations.

Guitar Hero® III: Legends of Rock © 2007 Activision Publishing, Inc. Guitar Hero and Activision are registered trademarks of Activision Publishing, Inc. All other trademarks and trade names are the properties of their respective owners. All rights reserved.

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