"We find out her parents were famous Nazi hunters and she's very insecure about her hair," Lynch tells TVGuide.com. "She actually emulated Madonna so much as a kid that she bleached her hair platinum blond and it all fell out. She's been forced to wear short hair ever since, so she's actually pretty jealous of Will Schuester's illustrious locks."
After Will makes a comment about Sue's short hair, Mercedes (Amber Riley) and Kurt (Chris Colfer) ease her pain by giving her a makeover, which leads to a re-enactment of the "Vogue" video. Get a sneak peek at the video below:
Glee airs Tuesdays at 9/8c on Fox.