<http://schema.org/headline>
"Lady GaGa, Katy Perry, Nicki Minaj covered in pop medley - video"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/fun/news/a349943/lady-gaga-katy-perry-nicki-minaj-covered-in-pop-medley-video/>