The Sugar Plum Fairy is a character from Shrek the Musical. She is based on the character of the same name from the ballet, The Nutcracker.
Shrek the Musical
The Sugar Plum Fairy is among those who are sent to Shrek's swamp by Lord Farquaad. Later, she sings "Freak Flag" with the other creatures and confronts Farquaad at his wedding.
In most of the productions, she speaks in a heavy Russian accent.