42. Jimmy Iovine and Eddy Cue

Cofounder, Beats Electronics; senior VP of internet software and services, Apple

Watch out, Spotify: Apple's coming for you. After launching last June, with Apple executives Iovine and Cue leading the charge, Apple Music garnered 6.5 million paid subscribers in the first month after the free-trial period ended. A year later, that number had grown to 15 million paid subscribers.

Though the service still has a ways to go to catch up with Spotify's 30 million paid subscribers, the rapid growth bodes well for the tech company. Apple launched the service as a direct challenge to Spotify's prominence in streaming, and so far it is putting forth a good fight.