Luckily, there's still one way to get the tickets, and some backstage passes to boot, by being the lucky caller on a radio station, and it turns out that SpongeBob is that lucky caller. So the two of them get to go to Kelpy G's concert, but SpongeBob isn't exactly that type of person. We get hit with a few moments of boring filler before the concert actually begins. Then Patrick, appears out-of-nowhere, asking for ketchup for his nachos. Alright, how the fuck did he get in?! It was clearly established that people needed tickets to get into that concert. Are you trying to say that Patrick... Oh god! OH, FUCKING GOD NO!!! WHY THE FUCK WOULD YOU PUT THAT IMAGE IN MY BRAIN?!! Oh wait, even that doesn't make any sense because of THIS LINE HERE:

SpongeBob: [to Squidward] You're probably not gonna get that back before showtime.

Mr. Enter: All it would have taken was Patrick mentioning he had a ticket of his own, [Caption: He still would have looked like a selfish prick, but at least it wouldn't be a plot hole] when he FUCKING ate Squidward's for no FUCKING REASON!!

Then Patrick eats Squidward's backstage pass, and then he eats SpongeBob's backstage pass. I'm a little bit rusty on basics of comedy, so someone is going to have to tell me -- how in any way is seeing someone in a constant state of misery funny?! This is a serious question, by the way. The answer is that it's funny, if that character is an unlikeable asshole!

[Caption: This would probably be enjoyable if it was, say, Allen Gregory at the butt of all these jokes.]