SpoilerTV Image Archive | Gallery | glee | Season 4 | Promotional Episode Photo | Episode 4.20 - Lights Out | GLEE: Finn (Cory Monteith, L) and Will (Matthew Morrison, R) enlist the members of New Directions to 'unplug" and perform acoustic numbers in the "Lights Out" episode of GLEE airing Thursday, April 25 (9:00-10:00 PM ET/PT) on FOX. ©2013 Fox Broadcasting Co. CR: Eddy Chen/FOX

GLEE: Finn (Cory Monteith, L) and Will (Matthew Morrison, R) enlist the members of New Directions to 'unplug" and perform acoustic numbers in the "Lights Out" episode of GLEE airing Thursday, April 25 (9:00-10:00 PM ET/PT) on FOX. ©2013 Fox Broadcasting Co. CR: Eddy Chen/FOX

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