Planning to make it big in the music industry by releasing a hit album? Dream On. A long forgotten PC Mag article resurfaced this week to remind us that the music industry had changed drastically over the last decade. According to Activision chief Bobby Kotick circa 2008, Guitar Hero: Aerosmith "generated far more in revenues than any Aerosmith album ever has." The game in question has sold over four million copies to date, droves more than most album sales in the modern market. An amazing fact, but don't act too surprised: headlining bands have always depended on the power of their brand to move merchandise and T-shirts as much as their albums. Still, it's a heck of a way to highlight the dilemma of the modern celebrity: who you are may be more important than what you do.