"Britney 2.0" is the second episode of the fourth season of the American musical television series Glee, and the sixty-eighth episode overall. Written by Brad Falchuk and directed by Alfonso Gomez-Rejon, it aired on Fox in the United States on September 20, 2012, and features Glee's second episode dedicated to the music of Britney Spears. This episode features the New Directions attempting to cheer up a depressed Brittany Pierce with Britney Spears songs. Special guest star Kate Hudson returns as Rachel's dance instructor, Cassandra July.