<http://schema.org/url>
<http://www.digitalspy.com/tv/the-sing-off/interviews/a353572/the-sing-off-pentatonix-interview-we-want-mainstream-success/>
<http://www.digitalspy.com/tv/the-sing-off/interviews/a353572/the-sing-off-pentatonix-interview-we-want-mainstream-success/>