http://news.lalate.com/2011/03/18/re...itunes-top-10/
I googled the interweb with my quiery and there is an interesting comment at the bottom of this article.
The credits for the song list "Rebecca Black" where as normally it would list Def Jam or other label. It may be the case that parents bought the rights to the song as well as the video. I hope they did.