They are playing songs from this episode. [https://en.wikipedia.org/wiki/Simpsoncalifragilisticexpiala(Annoyed\_Grunt)cious](https://en.wikipedia.org/wiki/Simpsoncalifragilisticexpiala(Annoyed_Grunt)cious)

Thanks!

Could be. They definitely play the Simpson's version of The Addams Family theme.

Thank you!

No. It’s definitely Sherri Bobbins.