YouTube Can Do The Harlem Shake

Okay, I get that the Harlem Shake is long gone - & that is definitely for the best. But I discovered something this morning, and I thought it was pretty cool. Apparently, if you go to YouTube and search 'Do The Harlem Shake,' Youtube literally does the harlem shake. It's not that noticeable at first, & you have to have your sound on. The harlem shake has been over for a while, but I thought this little hidden gem what kind of neat. Now I'm just wondering what other internet secrets are out their like this one?