YouTube

It's been a long time coming for YouTube's rumored subscription music service, but word has it that the final details are being hammered out, according to Android Police.

This new on-demand streaming music service will reportedly be called YouTube Music Key. It's said to have ad-free music with audio-only and offline playback, according to Android Police. The service will reportedly cost $9.99 per month and users will be able to test it out with a free 30-day trail.

It was revealed last summer that Google was planning to launch a subscription music service for YouTube. The service is said to work like Spotify but also come with videos. It's supposedly taken Google awhile to get the service off the ground because the company had to make deals with music labels for the rights to play their songs.

YouTube, which has more than 1 billion unique monthly users, is already the largest music service in existence, and for now it only makes money via ads. Throw in a subscription offering and it could be a game changer for music streaming.

While YouTube Music Key is said to be on the horizon, Google is also reportedly rebranding Google Play Music All Access as Google Play Music Key. The $9.99 per month price for YouTube Music Key is said to include Google Play Music Key.

CNET contacted YouTube for comment. We'll update the story when we have more information.