Rata Bailando

Rata Bailando (Dancing Rat) is 12-second screamer video uploaded to YouTube by a user Ramon on June 30, 2020.

The video contains a clip of an unofficial music video for "You Sexy Thing" by Hot Chocolate made by Pixar, in which a weird, humanoid mouse dances to the tune. As soon as the mouse turns around, a picture of a high-contrast bloodied face appears along with an extremely loud noise, which continues for several seconds before the video ends. This video has several mirrors and reuploads of it on YouTube, including censored versions.

In the comments section of the video, Ramon claims his friend sent the video to him on Discord, and that he didn't make the screamer. This makes it possible that the video has existed before Ramon's upload was made on June 30, 2020.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=iPunTxn-6UQ
 * Where the clip is from (no screamer): youtube.com/watch?v=RpFYfPRilB4