The musical has a score by Burton Lane (music) and Alan Jay Lerner (lyrics), and a new book by Peter Parnell based on the original book by Lerner. The show is reconceived and directed by Tony Award winner Michael Mayer.

The On a Clear Day lab is only open to Vineyard Theatre members. (Tickets are not on sale to the general public.)

Connick "was unable to participate in the lab due to prior scheduling conflicts," so Tony nominee Kudisch (9 to 5, Thoroughly Modern Millie) was asked to play with the material. The cast for The Vineyard's developmental lab of On a Clear Day You Can See Forever also includes Heather Ayers, Steven Booth, Benjamin Eakeley, Drew Gehling, Kendal Hartse, Paul O'Brien, Kerry O'Malley, Jessie Mueller, Zachary Prince, Sarah Stiles, David Turner, Alysha Umphress and Lori Wilner. This cast does not necessarily reflect future casting.

The Broadway run is currently on sale to American Express cardholders.

The Vineyard launched its Developmental Lab Program in 1991 "in order to provide artists with a safe and creative way to develop new works of theatre," according to the Off-Broadway not-for-profit. "Labs are small in scale and perform for a limited run that is closed to press. Every lab at The Vineyard is tailored to the needs of the developmental process of the piece; in the case of On a Clear Day, the format will be a concert presentation and due to the limited number of performances, will be open to current Vineyard Theatre members only."

Read more about the coming Broadway production of the 1965 musical.