MegaUpload shut down because of Megabox Jukebox service?

One rumor is now suggesting that authorities had to strike because of possible pressure from the music industry as the service was about to launch a music service called MegaBox that could have enabled artists to give away their music for free and get paid by MegaUpload via secondary revenue that may have been generated by tools such as advertising. Given the size of MegaUpload, at the time of its shutdown the 13th largest website, hosted on more than a thousand servers and more than 1 billion visitors every month, MegaUpload could have been a serious threat in such a venture for the music industry.

It is one of the rumors going around, I wonder if there is any substance in this one though .......