With the release of the Pinkie Pie album, Content ID scooped up a boatload of pony songs that had bits and pieces from the songs included on it. The automated system switches ads to send revenue directly to Sony as opposed to the actual musician that created them. Fortunately things seem to be reverting now! We've had a few reports come in that previously claimed remixes on Youtube are being freed up by Sony.
This seems to be a trend lately, and hopefully a sign that the days of copyright strikes on Youtube will soon be a thing of the past.
Thanks to Aurelleah, Zappatos, and Ryan for sending it!