<http://schema.org/headline>
"Video: Big Sean, Pusha T, 2 Chainz Perform &amp;quot;Mercy&amp;quot; At Summer Jam"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.complex.com/music/2012/06/video-big-sean-pusha-t-2-chainz-performs-mercy-at-summer-jam>