Some rock bands are making more money from Guitar Hero releases than from their albums:

...Aerosmith have made more money from "Guitar Hero: Aerosmith" (pictured above), a version of the video-game that features the band, than from any of their albums. Mr Kotick [of Activision] has even suggested that rather than expecting games companies to pay to license their music, bands should pay to have their music included in games.

...Metallica's new album Death Magnetic" was made available as a download for "Guitar Hero" on the day of its release. (Fans have pointed out that the video-game version actually sounds better than the album.)