The hilarious late '80s aerobics boom has really made a comeback this year: First with a Taylor Swift remix, and now this sketch from Key & Peele. But behind the peppy music—K&P used the actual soundtrack from the '88 Crystal Light Championships—lurks some seriously dark shit.

Key & Peele has always had a grim side—the guys were kidnapped and tortured in season 3—but they've dialed up the dark comedy this season with bits like the evil Make-a-Wish kid and a murderous, telepathic Steve Urkel.

Jordan Peele's deranged psycho persona, which tends to pops out of his most innocent-seeming characters, is what ties all these sketches together. No matter how many times you see him pull his demon-possession act, it's still chilling. And hilarious.

"Aerobics Meltdown" might be the best example yet.

[h/t Uproxx]