WATCH: Sneak Peek of all-new GLEE episode - 'I Do'

GLEE: Blaine (Darren Criss, L) and Kurt (Chris Colfer, R) perform at Will and Emma's wedding in the "I Do" episode of GLEE airing Thursday, Feb. 14 (9:00-10:00 PM) on FOX 50.

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By FOX50.com

Story Created: Feb 13, 2013 at 4:05 PM EDT

Story Updated: Feb 14, 2013 at 1:08 PM EDT

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Will and Emma’s wedding is finally here, and it lands on the day of romance and love: Valentine’s Day. The former and current members of New Directions reunite in Lima to celebrate in the all-new “I Do” episode of GLEE airing on Thursday, Feb. 14 (9:00-10:00 PM) on FOX 50. (GLE-414) (TV-14 D, L)

Cast: Matthew Morrison as Will Schuester; Jane Lynch as Sue Sylvester; Lea Michele as Rachel Berry; Cory Monteith as Finn Hudson; Chris Colfer as Kurt; Kevin McHale as Artie; Amber Riley as Mercedes; Mark Salling as Puck; Jenna Ushkowitz as Tina; Naya Rivera as Santana Lopez; Dianna Agron as Quinn; Heather Morris as Brittany; Darren Criss as Blaine Anderson; Chord Overstreet as Sam Evans; and Jayma Mays as Emma Pillsbury.

Guest Cast: Vanessa Lengies as Sugar Motta; Samuel Larsen as Joe Hart; Jacob Artist as Jake Puckerman; Melissa Benoist as Marley Rose; Dean Geyer as Brody Weston; Becca Tobin as Kitty; Alex Newell as Wade Adams; Lauren Potter as Becky; and Blake Jenner as Ryder Lynn.