Whatever did we do to deserve such a special little gem?!
The cast spills on their costume choices, what it was like to be transformed into the 70s, and who Finn was REALLY dancing with under that disco ball!!
Check out the McKinley crew on set in the clip (above)!!!
JEALZ!!!! Our boogie shoes haven't left our feet since Tuesday!!
We love seeing the cast get loose and show off their personalities apart from their characters!!