Who is Heather, and why do we love to hate her through the ages?

“Heather” was once synonymous with the archetypal popular mean girl. Now, the Heather is back in a big way thanks to a convergence of two TikTok trends - one a series of lovelorn videos set to Conan Gray’s song “Heather”, the other a lip-sync to a scene from the Heathers musical.