It's a chicken-or-egg question: should music games like Guitar Hero and Rock Band pay royalties to music labels, or should it be the other way around? Well, music games wouldn't be as fun if they don't have songs from popular artists. But then, music labels wouldn't sell as many albums as they are now if it weren't for music games.

So who owes who? That's what execs of Activision Blizzard and Warner Music are debating over. What's your take on it?