Thanks to a personalized style of content curation by Greenstein and his programming team, the satellite radio service added 1.8 million subscribers in 2014 -- propelling its base to more than 27 million -- and expects to add another 1.2 million in 2015 with projected operating earnings of $1.6 billion on revenue of $4.4 billion. SiriusXM remains a key outlet to break artists: Sam Hunt and Brandy Clark were among the acts to land label deals in 2014 after being spotlighted by the network's influential country music channel, The Highway. And the YouTube 15, which launched in July, features emerging artists found on the video site. Greenstein also has succeeded with audio feeds from such established TV brands as NBC's Today, which got its own channel in 2014. "When I first got here, I always heard that TV will never work on radio," he says. He's not hearing that anymore.
WHOM I CALL FOR ADVICE: E Street Band guitarist "Steve Van Zandt and my wife Sharon, depending on the advice [needed]."