2/3 of Spotify's free users are under 29

"Is Spotify’s free service drawing people away from piracy? Will Page from PRS for Music outlined a stat that starts to answer that question, during a speech to the IPsoc law society late last week. “Two thirds of Spotify Free users are under the age of 29,” he says. “Strong evidence that a significant part of ‘Generation Napster’ now prefer legal free.” Spotify has confirmed the figure with Music Ally."
Source:  MusicAlly, 5th April 2011