VIDEO: Alan Cumming Premieres Sneak Peek at 'Hoover Dam: The Musical' on LATE NIGHT

On last night's LATE NIGHT, guest Alan Cumming premiered a sneak peek of his new upcoming Broadway musical HOOVER DAM: THE MUSICAL. "It's a new musical, I've been workshopping it for a while," explained the Tony Award winner who went on to explain that he portrays the man who created the Hoover Dam, a "tormented soul who compares himself to beavers, who are of course naturally the best dam makers." Below, watch the performance of "Damned If I Do, Damned If I Don't."

Also on the show, Cumming talks about singing 'Sappy Songs' at Carnegie Hall.

Cumming made his professional acting debut as Malcolm in Michael Boyd's production of Macbeth at the Tron Theatre, Glasgow in 1985. 28 years later he played nearly all the parts in the National Theatre of Scotland's sensational re-imagining of the Scottish play on Broadway, earning him the Broadwayworld.com Best Actor Awards and a Drama League Performance of Distinction Nomination. After working extensively in the Scottish theatre, he made his West End debut in Conquest of the South Pole, which earned him his first Olivier award nomination. He appeared with the RSC, played Romeo for the RNT Studio and earned further Olivier nominations for La Bête and Cabaret. His career-defining Hamlet for the English Touring Theatre earned him huge critical acclaim, a TMA Best Actor award and Shakespeare Globe nomination. He won an Olivier for Accidental Death of an Anarchist at the Royal National Theatre.

In 1998 he made his sensational Broadway debut when CABARET transferred to NYC, winning him the Tony, Drama Desk, Outer Critics Circle, Theatre World, NY Press, FANY and Public Advocate awards. He went on to appear on Broadway in Design for Living and as Mack the Knife in The Threepenny Opera. Off-Broadway he appeared as the Pope in Jean Genet's Elle (which he also adapted) and as Trigorin in The Seagull opposite Dianne Wiest. In 2006, he returned to the West End in Martin Sherman's Bent, and in 2007 appeared in the National Theatre of Scotland's The Bacchae, directed by John Tiffany (Herald ArcAngel Award). Last year, he reprised his starring role in the Broadway revival of CABARET.

On TV he currently appears as Eli Gold in "The Good Wife" for which he has been nominated for Emmy, SAG, Satellite and Critics Circle awards. He also appears opposite Lisa Kudrow in Showtime's "Web Therapy" and is the host of "Masterpiece Mystery" on PBS. His eclectic film career has seen him work consecutively with Stanley Kubrickand the Spice Girls, and make appearances in the X Men, Spy Kids, Flintstones and Smurfs franchises as well as roles in many independent films such as Sweet Land (Independent Spirit Award), Julie Taymor's Titus and The Tempest and most recently Travis Fine's Any Day Now for which he received several Best Actor awards on the film festival circuit.

Photo: Lloyd Bishop