Squidward takes a shower and gets dressed, and prepares to audition for open chair at the Bikini Bottom Men's Chorus. When he steps outside, SpongeBob is lying on the ground, depressed. SpongeBob tells him that the reason he is so sad is that Patrick is out of town for a family reunion, and he needs someone to play with and something to do until Patrick gets back. SpongeBob asks Squidward where he is going, and asks Squidward if he can come with him. Squidward says no. SpongeBob tries to show Squidward he can sing, but Squidward rides off, leaving him in the dust. SpongeBob digs a pothole, and when Squidward falls into it, he tumbles into Jellyfish Fields, where a swarm of jellyfish surround and sting him as SpongeBob takes advantage of his "captive audience". Later, Squidward is back to riding his recumbent bicycle. When he sees he is almost late, he takes a detour through grass, where he is stopped by SpongeBob, who is dressed as a policeman. He gives Squidward a ticket for "reckless frowning" and not listening to him sing. Squidward rips off his moustache, yells at him, ties him to coral with some kelp, and rides off. When Squidward sings "figaro", SpongeBob also sings, generating soundwaves which cause the kelp to fall apart and attract jellyfish, which carry him away. Meanwhile, Squidward arrives in time and takes his place. After spending a considerable amount of time clearing his throat, the music begins and he sings along, quite poorly. SpongeBob, carried by jellyfish, comes in, singing. The people find his voice beautiful and give him the open chair, as well as a moustache which he wears. SpongeBob accepts, but only if they find a spot for his "inspiration and great friend", Squidward. They agree. During the concert, SpongeBob sings. Squidward is in charge of turning the pages of his songbook, which he does with a bitter look on his face.
When Squidward's toilet is disappointed, the toilet paper says Squidward "didn't use me yesterday either". This can mean one of three things: Squidward did not go to the bathroom yesterday, that he did not wipe yesterday, or he did not poop yesterday.
In this episode and many others, it appears that SpongeBob sings well. However, in the episode "Model Sponge," he sings rather badly.
When SpongeBob is singing "Figaro", it is a reference to Adam Sandler's Opera Man on SNL.
The song when SpongeBob thinks is similar to Jeopardy's think cue.
the plot is very similar to the ICarly episode "Imeet Fred"
When SpongeBob is singing at the end of the episode, we see that Squidward has to turn the page for SpongeBob, but he turns the page in the wrong direction.
When SpongeBob finished singing, Squidward was behind SpongeBob. When SpongeBob is talking to the people about singing in the choir, Squidward is off to the side.
When Squidward went through the seaweed forest, his stings disappear.
When Squidward ties SpongeBob to a tree, you see his mouth is covered, but in the next scene, his mouth was somehow freed from the seaweed.