Glee – Season 4, Episode 20 – A power outage at McKinley High inspires the glee club to do some a capella. Meanwhile, Ryder and Kitty reveal a tough part of their past. In NYC, Sarah Jessica Parker returns as Isabelle Kempt and invites Kurt, Rachel, and Santana to a fancy ballet event.
(April 25, 2013 - Source: FOX)
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