If you don’t instantly remember J.K. Simmons’ name and career, don’t feel too bad – with roles like the Farmers insurance guy and the yellow M&M, Simmons’ sharp wit (or face for that matter) don’t immediately spring to mind. But after his SNL monologue from last night, it will.

J. K. Simmons
Despite his surly character, Simmons is kind of the best.

It was Simmons' tyrannical music conductor from Whiplash who came out when he hosted this week's "Saturday Night Live." Whiplash is, of course a music-themed drama about a young drummer (Miles Teller), who enters a conservatory under the tutelage of a tyrannical, perfectionist mentor (Simmons).

More: Sensationally Tense Whiplash Deserves Oscars Success

Simmons plays Terrence Fletcher, the kind of guy you don't want to piss off or he just might throw a chair at your head. That was a spoiler alert for SNL, by the way. It was pretty much what the "SNL" cast was subjected to on Saturday when Simmons, who is nominated for Best Supporting Actor for the role of Fletcher, brought them out to help play a song.

More: Wait, Is Whiplash the Best Movie of 2014?

And they did, eventually. Kyle Mooney and Pete Davidson, who were behind the drums, were the first victims to get yelled at for not playing at Simmons' tempo (of course). Then, Leslie Jones served Simmons a taste of his own medicine. But of course, Fred Armisen’s drumming saved the day and won back Simmons’ good disposition.

Watch Simmons’ promo with Kate McKinnon below.