Can you guess who this girl is I'm going to add in American Dad based on these clues.
This girl is from a land where the impossible is possible and resembles a famous singer who is known to have a four-octave vocal range and is considered a pop icon. She is also known to care deeply about her appearance and popularity. She used to be self centered and dismissive towards people who seem lower than her regarding social status and can get jealous at times of others and can get easily offended if things don't go her way. But during her time with a certain special someone she became more kind and considerate to others even to the less popular students. She is also a very cheerful, bubbly, and silly girl when it comes to her passion which is singing putting her heart and soul into her voice and expresses her feelings through dancing. She also believed deeply into getting whatever she wanted thanks to her looks and popularity.