<http://schema.org/description>
"Check out the recordings created in Smule's Sing! Karaoke app and learn the lyrics."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.smule.com/song/pharrell-williams-ft-alicia-keys-know-who-you-are-karaoke-lyrics/_know_who_you_are>