Cringe! Julianna Margulies and Jimmy Fallon played the role of Principal and Vice Principal of Saugerties High School on the Tonight Show on Tuesday, Sept. 16 — their job? To perform morning announcements in the style of pop songs!

The Good Wife actress looked beyond frumpy in a short wig and brown and beige shirt-and-pinafore ensemble, as she joined talk show host Fallon in keeping things "hip" at their imaginary high school.

Margulies, 48, gave students a warning about sexting, to the tune of "Rude" by Magic. "Why you gotta text those nudes?" she sang, slightly off-key. "We'll be expelling you anyway."

Fallon made an announcement about a bake sale to Taylor Swift's "Shake It Up," with the words, "Bakers gonna bake, bake, bake, bake bake. So bake it off. Debate it off."

Margulies even performed a throwback musical warning about driving to the tune of Beyonce's "Single Ladies" — her version: "If you like it then you've gotta get a parking pass."

PHOTOS: Julianna's style

But the piece de resistance was the duo's rousing rendition of DJ Snake and Lil Jon's "Turn Down for What,” or "Turn Down for Tut" as it became, with the pair making a singing demand for permission slips for a trip to the museum to learn about King Tut. All while performing their best, most embarrassing mom and dad dances!

Click on the link above to watch the cringe-worthy performances!