STAGE TUBE: Sneak Peek - Megan Hilty Performs 'White Baby Grand' on SMASH

On the April 23 episode of the NBC musical drama SMASH, Megan Hilty will perform an original song by composers Marc Shaiman and Scott Wittman. The tune is a tribute to Marilyn Monroe's most prized possession, her family's white baby grand piano that was auctioned off after her mother was committed to a psych ward. Explains Wittman, "For her entire life she was looking for this piano until she found it at another auction and bought it back. It was the one thing she kept with her [until her death]. It was even in the Brentwood house when she died."

The song is titled "Second-Hand White Baby Grand." Shaiman commented, "it is the only song we wrote without it being specifically for an episode. The story was just so good, it inspired us." Added Wittman: "It's the one that is nearest and dearest to our hearts."

The episode airs Monday, April 23 at 10:00 pm/ET on NBC.

SMASH is a musical drama that celebrates the beauty and heartbreak of the Broadway theater as it follows a cross-section of dreamers and schemers who all have one common desire - to be a "smash." The series centers on the process of creating a Broadway musical based on the life of Marilyn Monroe - written by the successful songwriting duo of Tom (Tony Award nominee Christian Borle, "Legally Blonde: The Musical") and Julia (Emmy Award winner Debra Messing, "Will & Grace"). Julia recently began the process of adopting a child with her husband Frank (Tony Award nominee Brian d'Arcy James, "Shrek The Musical") of many years, but her focus is torn when she has the opportunity to write another Broadway hit. A rivalry soon forms for the lead role between a youthful, inexperienced Midwestern beauty Karen (Katharine McPhee, "American Idol") - who is trying to find fame in the big city against all odds - and stage veteran Ivy Bell (Megan Hilty, "9 to 5: The Musical"), who's determined to leave the chorus line and finally get her big break. A tenacious producer Eileen (Oscar winner, Anjelica Huston, "Prizzi's Honor") discovers the "Marilyn" project and jumps on board with a brilliant director, Derek (Jack Davenport, "Pirates of the Caribbean" films) - whose talent is matched by his cunning and egocentric amorality. Jaime Cepero ("Porgy and Bess") stars as Ellis, and Raza Jaffrey ("Sex and the City 2," "MI-5") stars as Dev.

The series stemmed from an idea of executive producer and multiple Emmy and Oscar winner Steven Spielberg ("ER," "Schindler's List"). The pilot was written by acclaimed playwright/screenwriter Theresa Rebeck ("Mauritius," "NYPD Blue"). David Marshall Grant ("Brothers and Sisters"), Craig Zadan and Neil Meron (Oscar-winning "Chicago," "Hairspray") and Darryl Frank and Justin Falvey ("United States of Tara," "The Borgias") also serve as executive producers. Original songs are written by Tony and Grammy Award winners Marc Shaiman and Scott Wittman ("Hairspray," "Catch Me If You Can"), who serve as executive producers as well.

View Megan Hilty's performance on the upcoming episode below!