Citation needed
It gets even better than that. At the moment YouTube will block completely private videos of people singing songs that are in the public domain because some big name artist also recorded the same song and the record company makes a blanket claim to copyright.
That sounds credible, but not (AFAIK) proven.
It's basically something Big Pirates (like Disney) have been doing for decades. Which begs the question: is it some story from the past that's become apocryphal in a modern retelling, or are there documented cases you can cite? URLs would be welcome here.