It was recently announced that Grand Theft Auto surpassed the earnings of the entire music industry after less than a week on sale. The game raked in over $1 billion in three days with publisher Take Two quickly pointing out that the music industry makes $1.4 billion in a month. That is ridiculous.
Recently we've seen more and more musicians cashing in, licensing tracks for Guitar Hero, making cameos and even developing their own games. Snoop Dogg for example recently put out the rather poor Way of the Dogg, but he would flog literally anything anything these days so he's barred from this list. These are the most surprising musician cameos in video games.