'Glee' Season 4 finale: An original song, Rachel singing Celine Dion and more songs from 'All or Nothing'

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This is it, Gleeks. "Glee" has finally reached its Season 4 finale, "All or Nothing," and the stakes have never been higher. Not only does this episode bring Rachel ( Lea Michele) back to her "Funny Girl" auditions, but the New Directions finally make it to their Regionals competition.

When you add in Blaine ( Darren Criss) proposing to Kurt ( Chris Colfer) and "American Idol" singer Jessica Sanchez guest-starring, this is definitely going to be a big episode.

The music is just as big. From Celine Dion to an original "Glee" performance, here are the tunes we can expect from "All or Nothing."

"To Love You More" by Celine Dion, performed by Rachel



"Clarity" by DJ Zedd, performed by Frida Romero (Jessica Sanchez) and the Hoosierdaddies



"Wings" by Little Mix, performed by Frida Romero and the Hoosierdaddies



"I Love It" by Icona Pop, performed by Tina, Brittany, Unique and the New Directions



"Hall of Fame" by The Script, performed by Artie, Sam, Jake, Joe, Ryder and the New Directions



"All or Nothing," an original song for the episode, performed by Blaine, Marley and the New Directions



The "Glee" Season 4 finale airs Thursday, May 10 at 9pm on FOX.

Photo/Video credit: FOX