Marin Mazzie, Tovah Feldshuh, and Andy Mientus also take to the 54 Below stage to promote their shows.
Lithgow received the New Victory Arts Award on January 12.
The Tony-winning songwriters are set to receive the Oscar Hammerstein Award for Lifetime Achievement.
Check out photos of the stars before they hit the stage.
If you ever wondered what Nathan Lane and Megan Mullally looked like in selfie form, you're in luck.
Michael McElroy, Jennifer Leigh Warren, and others will also participate.
The honors were presented at Sardi's on May 22.