WATCH: Sneak Peek of all-new GLEE episode - 'Diva'

GLEE: Finn (Cory Monteith, L) and Emma (Jayma Mays, R) challenge the glee club to find their inner powerhouses for "Diva Week" in the "Diva" episode of GLEE airing Thursday, Feb. 7 (9:00-10:00 PM ET/PT) on FOX. ©2013 Fox Broadcasting Co. CR: Eddy Chen/FOX

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By FOX50.com

Story Created: Feb 6, 2013 at 5:43 PM EDT

Story Updated: Feb 7, 2013 at 11:13 AM EDT

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Finn challenges the glee club to find their inner powerhouses for “Diva Week.”

Meanwhile, in New York, Kurt can no longer take Rachel’s arrogant attitude and calls her out, causing tension between the two friends.

Also, Emma is in a whirlwind preparing for her upcoming wedding in the all-new “Diva” episode of GLEE airing on Thursday, Feb. 7 (9:00-10:00 PM) on FOX 50. (GLE-413) (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; and Blake Jenner as Ryder Lynn