One of Jimmy Kimmel’s most popular segments on his late-night show is having celebrities read mean tweets about themselves, but when the Canadian Safe School Network riffed off Kimmel’s shtick, having teens read mean tweets directed at them, the resulting video becomes heartbreaking.

“The teens begin by laughing off the insults, but as the tweets get meaner and meaner, the video takes on a much more somber tone,” writes Samantha Grossman for Time. “The last girl to appear is told to go kill herself and then walks off the screen.” (Time)