A Video that I saw being posted all over Facebook before the Super Bowl this year was a funny parody song about Patriots Tight End Rob Gronkowski. It is just another way that Gronk likes to promote himself through social media.
News affiliates such as CNN also use Facebook to post news so people may get it as quick as possible. I was on Facebook this morning and saw an interview with CNN where secretary of State Hillary Clinton said she would not run for vice president with President Obama if he asked here. This story had been floating around for a while, and she shot it down in that interview.