<http://schema.org/alternativeHeadline>
"Spotify has reportedly converted 12.5% of its 1.4m US users to paying subscribers"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2011/08/08/spotify-has-reportedly-converted-12-5-of-its-1-4m-us-users-to-paying-subscribers/>