VIDEO: Megan Mullally to Join Matthew Broderick & Nathan Lane in Broadway's IT'S ONLY A PLAY This Fall!

Comedy power couple Megan Mullally and Nick Offerman stopped by last night's Late Night with Seth Meyers to talk about making canoes, working together and working with Seth.

During the appearance, Mullally shared that she will be starring in a new comedy by Terrance McNally. "This is a big scoop...," said the 'Will and Grace' star. "I'm coming back to do a play on Broadway, a comedy by Terrence McNally called 'It's Only a Play' with Nathan Lane and Matthew Broderick for the fall."

Mullally and her husband just wrapped an off-Broadway limited run engagement of Annapurna by Sharr White, directed by Bart DeLorenzo at New York's The New Group.

Later in the show, Mullally raps and the couple tell Seth all about their new show, Summer of 69 - "no apostrophe!"

Check out clips from the appearance below!

IT'S ONLY A PLAY was last seen in 1986 at Manhattan Theater Club, starring James Coco and more. It's set on the opening night of "The Golden Egg" on Broadway at one of the producer's houses, where the director, the show's leading lady, the playwright (who will be played by Broderick) and his best friend (played by Lane), an insecure actor, a hypocritical drama critic, a servant aspiring to be a singer, and a hard-worn taxi driver have barricaded themselves in the upstairs bedroom waiting for the reviews to come in.

Broderick last appeared on Broadway in Nice Work If You Can Get It, and before that, starred in The Philanthropist, The Odd Couple, The Producers, Taller Than a Dwarf, Night Must Fall, Biloxi Blues, How to Succeed in Business Without Really Trying and Brighton Beach Memoirs. For the latter two, he won Tony Awards in 1995 and 1983.

Lane starred in last year's The Nance, for which he was nominated for a Tony. Among his many Broadway credits are The Addams Family, Waiting for Godot, November, Butley, The Odd Couple, The Frogs, The Play What I Wrote, The Producers, The Man Who Came to Dinner, A Funny Thing Happened on the Way to the Forum, Love! Valour! Compassion!, Laughter on the 23rd Floor, Guys and Dolls, On Borrowed Time, Some Americans Abroad, Wind in the Willows, Merlin and Present Laughter. Lane won a 2001 Tony Award for his portrayal of 'Max Bialystock' in The Producers, as well as for 1996's 'Forum'.