This song is obviously "F.U.N.," which SpongeBob and Plankton sing together - although SpongeBob is singing about having fun while Plankton is singing about dominating the world and destroying things.

Plunge into this stunning all-singing, all-dancing, dynamic stage show! When the citizens of Bikini Bottom discover that a volcano will soon erupt and destroy their humble home, SpongeBob and his ...