Psychobilly artist Mojo Nixon has been giving away his back catalogue on Amazon this month, and according to a report in the Wall Street Journal has racked up more than one million downloads this month alone. Nixon was apparently hoping to get as many as 10,000 downloads from the scheme, so it has to qualify as a success. Why? Well, BigChampagne boss Eric Garland points out in the story that even though the downloads are free, they’ll filter into Amazon’s recommendation system. “The people-who-bought-this-also-bought aspect of Amazon is going to make this really viral within the Amazon marketplace,” he says.