Is the Music Streaming Industry Destined to Leave Artists Unhappy?

Advertisers love Pandora and Spotify, but the money isn't trickling down

Pharrell's "Happy" was the song of 2014, topping the charts in the U.S. and two dozen other countries, selling 6.45 million copies and winning a slew of accolades, including a Grammy Award and the inaugural Grand Clio Music Award.