The actor and Brian Hargrove will stage the musical in New York next year (12) after wowing critics during its stint at the George Street Playhouse in New Jersey.
Pierce admits he relished directing the production, about the highs and lows a bride and groom experience on their wedding day.
In an appearance on U.S. morning show Live! With Kelly on Monday (12Dec11), Pierce explains, "I directed a brand new musical. We did it out of town. We're actually going to bring it to Broadway in the fall. It's called It Shoulda Been You. It takes place during a wedding.
"The nice thing about directing is that you tell people what to do, then you go home. It could have been stressful but it wasn't... What I did was I put together an amazing group, a great cast but also the designers and the tech people and all that... I had a great time."