Oscar-Winner J.K. Simmons Guests as Maestro Mackerel on SpongeBob SquarePants March 4
Newsdesk Oscar®-Winner J.K. Simmons Guest Stars in Brand-New SpongeBob SquarePants Episode Premiering Saturday, March 4, at 10:00 a.m. (ET/PT) on Nickelodeon All-New Bunsen is a Beast Special Featuring The Fairly OddParents…