Glee Cast (Gwyneth Paltrow) performs an Adele track, 'Turning Tables' for the episode, 'A Night of Neglect'.

Glee Cast (Charice) performs Celine Dion's 'All par Myself' for the episode, 'A Night of Neglect'.

Glee Cast (Amber Riley) performs 'Ain't No Way' for the episode, 'A Night of Neglect'.

Santana gets slushied, Mercedes goes diva and Sue forms the League of Doom. There's so much going on in A Night of Neglect!