Watch! Santana, Mercedes, Finn and The New Directions Sing "Stayin' Alive" in Glee Season 3, Episode 16: "Saturday Night Glee-ver" (VIDEO) Tweet April 18, 2012 by Beth Douglass Related: Glee, Music , Finn Hudson , Mercedes Jones , Santana Lopez , Season 3 Episode 16 Credit: Perez Hilton Original Air Date: Tuesday, April 17, 2012, 8/7c on Fox
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