According to a recent drama alert fromkeemstar, the strike has been reported. PewDiePie responded to one of the allegations by saying that some fake bozo pretended to be him.
In addition, a number of YouTube channels that aired or used the music received complaints. Tunecore has now been awarded the rights to the video by a private company. PewDiePie’s song Congratulations is currently the most viewed YouTube video.
Generally speaking, however, most songs are copyrighted and therefore require permission from the copyright holder before they can be used. It depends on a number of factors, including the specific song in question and the country in which it was created. There is no one definitive answer to this question.