In case you're not familiar with BLR, it's an anonymous person who dubs TV shows, films or footage from news events with hilarious results.
When asked why they insisted on anonymity, the person behind Bad Lip Reading had this to say to the NY Times:
"I work in several different areas, and I like to keep those areas separate. At least for the time being. So, staying anonymous helps in that sense.
"But the anonymity thing is something that just interests me in general. I actually have quite a few anonymous or pseudonymous projects out there, some of them predating Bad Lip Reading by several years. It's fascinating to watch these things grow and spread on their own. It's an interesting social experiment."
Past videos have included reinterpretations of Star Wars, The Avengers and Beyoncé.