To further the series' success, NPD also reported that over 40 million paid individual songs have been sold via 's DLC, remaining a strong first for paid song sales across the board.
Rock Band surpasses $1 billion dollars in sales
26.03.2009
A ground-breaking musical revolution from the start, it comes as no surprise that, according to this morning's announcement by The NPD Group, Harmonix's franchise has exceeded one billion dollars in sales.