Liza Minnelli will make a cameo appearance on a forthcoming episode of NBC's Smash.

The 66-year-old will appear on the musical drama and sing an original song with the show's star Christian Borle, it has been announced.

The song will be written by the show's composers Marc Shaiman and Scott Wittman.

NBC chairman Robert Greenblatt said: "Liza Minnelli is the essence of a multi-talented, singular show business sensation, particularly for her extraordinary contributions to Broadway. So what could be more fitting than to have her legendary talent on a show that celebrates a world Liza has dazzled for decades?

"I had the pleasure of working with Liza when we restored her landmark television special Liza With a Z at Showtime, and to see her artistry up close and personal is a thing to behold."

Smash is a musical drama that follows a selection of misfits who are all united by their desire to become a Broadway star.