O'Connell will play the role of Robert Samson opposite four-time Grammy Award winner Fleming as Raquel De Angelis, Tony Award nominee Douglas Sills as Vito De Angelis, two-time Emmy Award nominee Anna Chlumsky as Iris Peabody, Blake Hammond as Bruce and Scott Robertson as Eric.

Producers Scott Landis and Philip Morgaman previously announced that Living on Love will begin previews April 1 prior to an official opening April 20 at the Longacre Theatre.

Three-time Tony Award winner Kathleen Marshall will direct. (Tony winner DiPietro's new work is based on the play Peccadillo by the late Garson Kanin.)

"The world’s most famous opera singer Renée Fleming plays the world’s most famous opera singer in this hilarious new screwball comedy," according to press notes. "When her larger-than-life maestro husband (Sills) becomes enamored with the lovely young lady (Chlumsky) hired to ghostwrite his largely fictional autobiography, the diva retaliates by hiring her own handsome, young scribe (O'Connell) to chronicle her life as an opera star. Sparks fly, silverware is thrown, and romance blossoms in the most unexpected ways."

The creative team includes scenic designer Derek McLane, costume designer Michael Krass, lighting designer Peter Kaczorowski, sound designer Scott Lehrer and music consultant Rob Fisher. The 18-week engagement ends Aug. 2. Over 100 seats will be set aside to be sold for $25 at every performance.

Living on Love is produced on Broadway by Scott Landis, Philip Morgaman, Ryan Chang, TNT Dynamite Productions, Just For Laughs Theatricals, Glass Half Full Productions, Stephanie P. McClelland, Alix Ritchie/John Yonover and Gregory Franklin/Phil Kenny .

Tickets are available through Telecharge.com, by calling (212) 239-6200, and in person at the Longacre Theatre box office (220 West 48th Street) beginning March 4.