In the song "Perfect People of the World", the man and woman celebrities represent Brad Pitt and Angelina Jolie.
Jamie's outfit, the yellow track-suit, in the musical number "My Awesomeness is Awesome" was based off of Uma Thurman's outfit in Kill Bill: Vol. 1 (2003) which in turn was based off of Bruce Lee's in Game of Death (1978).
In order to get Bruntford looking better in her song, the makeup team had to use a pound of wax and a lot of makeup.
Durning Bruntford's musical number and in the end, Jamie is seen smiling in awe while everyone else is either in disgust or covering their ears.
The only times Jamie changes her hairstyle is in the musical number "More Than a Number to Me", during the scene where she is getting money for the Jumpathon and helping Isabella get money for the Juvenile Optometry Federation, and at the Jumpathon, but other than that, her hair is always down.