First Look At GLEE's CHORUS LINE Tribute, With Sarah Jessica Parker

Set photos from the upcoming GLEE tribute to one of Broadway's most beloved and celebrated musicals of all time, the Tony Award and Pulitzer Prize-winning A CHORUS LINE, have been leaked by one of the show's creators himself, Ryan Murphy, and show star Lea Michele.

Also, now in adding up the clues, it appears that onetime Broadway ANNIE and GLEE 4.0 recurring guest star Sarah Jessica Parker will be joining Lea Michele, Naya Rivera and Chris Colfer in singing "At The Ballet" in the upcoming "Lights Out" episode, airing next Thursday, as well!

Check out Ryan Murphy's original Twitter post here.

Murphy Tweeted earlier this month, "The Incredible SJP! This number was her idea" along with a quick snapshot of the stage and screen star shooting "At The Ballet".

Murphy also shared an image that depicts Lea Michele, Chris Colfer and Naya Rivera dressed to the nines, just offstage, while another shows them as just toddlers at the barre.

Michele took to her Twitter, too, to share some shots of herself, Colfer and mini-Rachel.

Clearly, all of this is part of the big "At The Ballet" sequence, after all!

So, let's all hope GLEE does A CHORUS LINE proud as it has done many musicals in the past - among them, CABARET, THE ROCKY HORROR SHOW, WEST SIDE STORY and GREASE.

GLEE's "Lights Out" is set to air April 25.

Check out the pictures from the upcoming GLEE tribute to A CHORUS LINE below.

Photo Credits: Twitter