Jan Ravnik and Jen Affleck couldn't have picked a more fitting song for Dancing With the Stars' Halloween Night. Ravnik, 30, gave his Instagram followers a sneak peek from his rehearsals for the Tuesday, October 28, episode, as he and Affleck prepare to perform a contemporary dance to Taylor Swift's clapback anthem "Look What You Made Me Do." In a picture posted via his Instagram Story on Monday, October 27, Ravnik bent backwards รก la The Matrix, while Affleck, 26, spookily hovered above him with a hand raised over his torso.