Season thirteen of “The Voice” will conclude with a two-hour finale on Tuesday, December 19. As is tradition for the show, the finale will feature performances by a number of celebrity performers. According to NBC, Demi Lovato will perform “Tell Me You Love Me” on the show. Kelly Clarkson will sing “Medicine,” N.E.R.D will perform “Lemon,” Charlie Puth will perform “How Long,” Sia will sing “Snowman,” and season twelve winner Chris Blue will perform “Blue Blood Blues.”

The episode will also feature numerous collaborations between celebrity musicians and season thirteen contestants:

Noah Mac with Bastille – World Gone Mad
Red Marlow with Vince Gill – When I Call Your Name
Chloe Kohanski with Billy Idol – White Wedding
Davon Fleming with Jessie J – Not My Ex
Addison Agen with Norah Jones – Don’t Know Why
Adam Cunningham & Keisha Renee with Bebe Rexha – Meant To Be
Brooke Simpson with Sia – Titanium

The episode, which will reveal whether Chloe Kohanski, Addison Agen, Brooke Simpson or Red Marlow won season thirteen, will air from 9-11PM ET/PT.

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