The kids at McKinley High could be taking on tunes of pop princess Britney Spears. "GLEE" creator Ryan Murphy tells Entertainment Weekly he's interested in a Britney-themed episode. The singer's manager is also pushing for the idea on Twitter. All of this comes on the heels of the success of last week's Madonna-themed episode. Murphy says he's considering other special episodes featuring the music of Led Zeppelin, Billy Joel and Courtney Love.