The stars make their debut on Saturday

March 09, 2016 12:40 PM

Betty White and Aubrey Plaza are headed under the sea!

The stars will appear on Saturday’s episode of SpongeBob Squarepants. White will voice Beatrice, a kindly older owner of a mall store focusing on grandmotherly things. Her character helps comfort Pearl, who after getting a job at the mall, is teased by a goth teen named Nocturna (voiced by Plaza), who accuses of her of being uncool.

Betty White voices Beatrice in SpongeBob Squarepants

“Don’t let those bobble-headed nincompoops get to you Pearly,” White’s character says in an exclusive clip, adding that she was teased by mean girls in school. “They called me Boring Beatrice. Not very creative those girls.”

Aubrey Plaza voices Nocturna in SpongeBob Squarepants

Good advice indeed.

The episode airs Saturday at 7:30pm ET ahead of the Kids’ Choice Awards on Nickelodeon.