Thanks to the new Netflix series "Dahmer", a lot of young people are learning who Jeffrey Dahmer was for the first time.  And now, they want to retroactively cancel the Katy Perry song "Dark Horse".

As you may . . . or may not . . . know, the rap break by Juicy J includes the line, "She's a beast, I call her Karma / She eat your heart out like Jeffrey Dahmer."

And even though it's been kicking around for a decade, the song is apparently now a danger to society. Here's a sample Tweet:  "I didn't know who Jeffrey Dahmer was until last week but now knowing what he did, Juicy J is sick for making people especially little kids sing that man's name and Katy Perry is also sick for allowing that lyric in her song." People are also piling on the Kesha song "Cannibal", which came out in 2010 and also name drops Dahmer.