It is the first place that SpongeBob and Squidward perform at. They actually done very well as other Bikini Bottomites were playing along to the song. However, Mr. Krabs was charged for playing there by Dwight T. Wad, the Supermarket manager.
SpongeBob SquarePants and Squidward Tentacles - Performers
Sheldon J. Plankton - He tried to hide here in "Fiasco!"