Special Guest Stars Gwyneth Paltrow as Holly Holliday Kristin Chenoweth as April Rhodes Guest Stars Amber Riley as Mercedes Jones Heather Morris as Brittany Pierce Mark Salling as Noah 'Puck' Puckerman Dianna Agron as Quinn Fabray Harry Shum, Jr. as Mike Chang Lauren Potter as Becky Jackson Bob Glouberman as Mitzvah University President Co Starring Brad Ellis as Brad the Piano Player Dabier as Animal Husbandry Clubber