You may think this episode is shallow and an easy parody of a well known musical. But, somehow, you have to recognize that you see it in its entirety every time it is restocked. The songs are catchy as hell, the rhythm is fun, the phrases are unforgettable, and each character gives their best. It is Simpsons in its purest form, laughing at the system making a parody on its scale, releasing hilarious phrases to make us see the reality behind each little theater. Lisa is a complex character, selfish deep down behind her charitable facade, which is why she is also one of the characters who has the most room to evolve in each episode. And because after so many years we already know her and we laugh at her falls from the highest moral standards to her true passion to be accepted and stand out.