Detailed Instructions: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Q: What was the original monicker of the for-pay service with a color in its name that is offered by the largest free video site of the internet?, Context: YouTube Red is YouTube's premium subscription service. It offers advertising-free streaming, access to exclusive content, background and offline video playback on mobile devices, and access to the Google Play Music "All Access" service. YouTube Red was originally announced on November 12, 2014, as "Music Key", a subscription music streaming service, and was intended to integrate with and replace the existing Google Play Music "All Access" service. On October 28, 2015, the service was re-launched as YouTube Red, offering ad-free streaming of all videos, as well as access to exclusive original content.
A:
Music Key