According to Activision CEO Mike Griffith at the company’s pre-E3 conference yesterday, Guitar Hero has made the company over $1 billion in revenue.

He went on to say that the install base has surpassed over 15 million and that the company is looking to increase those numbers even more in the future. Guitar Hero 5 apparently has more than 20 top 10 hits in its tracklist.

Looks like this is one franchise that isn’t going anywhere any time soon.