<http://schema.org/headline>
"Kendrick Lamar, Pink and Merle Haggard to Perform at Grammys"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.rollingstone.com/tv/news/kendrick-lamar-pink-and-merle-haggard-to-perform-at-grammys-20131219>