VIDEO: Why Does Tina Fey Compare MEAN GIRLS Cast Members to Justin Timberlake?

On last night's TONIGHT SHOW, guest Tina Fey revealed details of the highly anticipated musical Mean Girls, heading to Broadway in March 2018. The production, adapted form the hit Paramount film, will begin previews at Washington DC's National Theater on October 31st. Joked Fey of the talented cast, "They're like a bunch of baby Timberlakes. Everyone can do everything!"

Later, Fey joined The Ragtime Gals for a barbershop quartet version of Bruno Mars' "That's What I Like' and shared details about the latest season of Netflix's "Unbreakable Kimmy Schmidt." Watch the clips below!

The new musical will feature a book by Tina Fey, based on her screenplay for the film, music by three-time Emmy Award winner Jeff Richmond ("30 Rock," "Unbreakable Kimmy Schmidt"), and lyrics by Tony Award nominee Nell Benjamin (Legally Blonde). Tony Award winner Casey Nicholaw (The Book of Mormon, Something Rotten!) will direct and choreograph.

After years of living with her zoologist parents in Africa, Cady Heron moves to Illinois and must find where she fits in the social hierarchy. A sweet, naive newbie, Cady quickly attracts the attention of The Plastics, a trio of popular FRENEMIES led by the VICIOUS and calculating Regina George. When Cady devises a plan to end Regina's reign, she learns that you can't cross a Queen Bee without getting stung.

Full of razor-sharp wit and remarkable insight, Mean Girls takes a look at friendships - and human nature - through a ferociously funny lens. Be the first to see this world premiere, produced by Lorne Michaels and Stuart Thompson.