By Esther Zuckerman
Updated January 28, 2015 at 12:00 PM EST

In Whiplash, J.K. Simmons is a stickler for tempo. In Simmons’ Saturday Night Live promos, Kenan Thompson is. Thompson corrects Simmons’ rushing, and then his dragging, and then, à la Simmons’ Fletcher, gets physical. “What the hell, Simmons. You trying to sabotage my promos?” Thompson says, hitting him. “Yeah,” Simmons giggles.

The two also take on New Yorkers’ panic about the blizzard that underwhelmed in the city, and what the J.K. in J.K. Simmons stands for. It’s not “Jungle Khaki” or “Jellybean Kink.”

The Oscar nominee will host this week’s episode, which will feature D’Angelo as musical guest.