The 19 Most Epic Glee Performances of All Time

Brittany might not have the strongest voice on the show, so putting her in a Beyoncé song isn't an obvious choice. However, she can dance better than anyone else — Heather Morris actually went on the tour with Queen B herself as a backup dancer, before Glee enlisted her as their resident airhead with a high IQ. Showing off her theatricality, performance skills, and her vocals, one of the more empowering numbers Glee had to offer was Britt's take on Beyoncé's "Run the World (Girls)."