Kitty, ready to help with the high notes.
There are countless videos on the Internet of adorable kids singing catchy songs. This is not one of those videos. This is a video of a cat acting like a jerk. However, unlike most clips in the "cats being jerks" genre, it's pretty easy to understand where this one is coming from. It's not a random attack. The boy in the clip might be a great kid, but both his singing and the song leave something to be desired. Specifically, that he stop. And never sing again.
Even though the cat winds up looking like a dick, it's entirely possible that he loves this boy, and understands that if he didn't step up and put a stop to his singing, someone—a family member, an angry neighbor, local police—eventually would have. So, you could look at this as a video of the cat doing the boy, his family, the neighbors, and music a big favor.