Liliane Montevecchi took her first dance classes at 8 with Pierre Duprez, primo ballerino of the Opera in Paris, France. She entered the Conservatoire and completed her training for two years, with Jeanne Schwarz and Mathilde Kschessinska, on the stage of the Opéra Comique. She appeared for the first time on a stage at the Champs Elysées theater in a ballet of David Lichine. She then worked with Léonide Massine and danced in Monte Carlo for the crowning of Rainier III, Prince of Monaco, in 1949. She also made her first steps at the Casino de Paris with Jean Guélis.
Liliane Montevecchi began her international career as a prima ballerina in Roland Petit's dance company. In the mid-1950s she was signed to a contract by MGM, which cast her in various roles in such films as The Glass Slipper with Michael Wilding and Daddy Long Legs (with Fred Astaire), in both of which she was acting with leading lady Leslie Caron, the Jerry Lewis vehicle The Sad Sack, The Young Lions with Montgomery Clift, Dean Martin and Marlon Brando, Meet Me in Las Vegas with Cyd Charisse and John Brascia, and King Creole with Elvis Presley. She knew Gene Kelly, Elizabeth Taylor and Clark Gable, and she took classes at the Actors Studio in New York, alongside Marilyn Monroe.
After some television work in series such as Playhouse 90 and Adventures in Paradise at the end of the decade, Montevecchi opted to leave Hollywood for a star spot in the Folies Bergère and toured with the company for nine years. She replaced Colette Brosset in the 1958 Broadway revue La Plume de Ma Tante, and in 1982 she drew the attention of critics and audiences for her performance in Nine, with Raúl Juliá, for which she won both the Tony and Drama Desk Award for Best Featured Actress in a Musical. She also has starred in musicals such as Irma La Douce, Gigi and Hello Dolly!. Seven years later she starred in Grand Hotel, earning a Tony nomination for Best Actress in a Musical.
On TV she guest–starred in more than 20 shows, and was nominated for an Emmy for Child of Our Time.
Montevecchi also appeared in the films Wall Street and How to Lose a Guy in 10 Days with Matthew McConaughey. She has appeared in concert at Carnegie Hall and Lincoln Center and toured internationally with her semi-autobiographical shows On the Boulevard and Back on the Boulevard. Her solo album On the Boulevard is available from Jay Records. She also is featured in the recording of the 1985 concert version of Follies staged at Avery Fisher Hall.
In 1999, she replaced Eartha Kitt as The Wicked Witch of The West in Radio City Entertainment's touring production of The Wizard of Oz co-starring Mickey Rooney as The Wizard and Jessica Grove as Dorothy. Liliane Montevecchi appeared as The Witch during the show's limited run at The Theater at Madison Square Garden.
In 2001, Liliane Montevecchi appeared as Mistinguett at the Théâtre National de l’Opéra Comique in Paris.
In Seattle, Washington as well as San Francisco, CA, Liliane Montevecchi had a very successful turn as "Madame ZinZanni" at Teatro ZinZanni since its opening with Frank Ferrante, Michael Davis (juggler), Les Castors, Dreya Weber, Mat Plendl and many talented artists. She took part in the recording of the album The Divas with Joan Baez, Thelma Houston, Sally Kellerman, Christine Deaver, Debbie de Coudreaux, Francine Reed, Juliana Rambaldi and Kristin Clayton in 2006.
In April 2009 she was honored as "Entertainer of the Year" Boys' Towns of Italy at their 64th Annual "Ball of the Year" Gala.
She returned to Teatro ZinZanni in June 2009 to reprise the role and in September 2011 in the show Bonsoir Liliane!, starring alongside Kevin Kent, directed by Tommy Tune and choreographed by Tobias Larsson.
In early 2012, she joined with Kaye Ballard, Donna McKechnie and Lee Roy Reams for the musical review Doin' It For Love. The show played Austin, Texas, Albuquerque, New Mexico and Los Angeles.
Active in a number of humanitarian causes including fights against AIDS and cancer, Montevecchi was knighted by the Knights of Malta in 1985, and was given the Columbus Citizens Foundation's 1995 Woman of the Year Award.
She was honored by the French Minister of Culture as the "Officer of Arts and Culture" to France and the world at large in 2013.
In March 2015, Liliane Montevecchi won critical praise for recreating her Tony nominated role of Grushinskaya in Grand Hotel: The 25th Anniversary Reunion Concert at 54 Below, in New York City.
In November 2015, at the behest of producer Patrick Niedo, Liliane Montevecchi brought a triumphant solo show Aller-Retour (Round Trip) to Paris for the first time.
In January 2017, Liliane Montevecchi was given the Lifetime Achievement Award by the Ziegfeld Society of New York City.Jours de France (2016) .... Judith Joubert... a.k.a. 4 Days in France (International : English title)
Comment j'ai accepté ma place parmi les mortels (2008) .... Mirna
How to Lose a Guy in 10 Days (2003) .... Mrs. DeLauer
L'Idole (2002) .... Nicole ... a.k.a. The Idol (International: English title)
An Evening with Rosanne Seaborn (2001) (TV) .... Mrs. Mannering
Mistinguett, la dernière revue (2001) (TV) .... Mistinguett
Of Penguins and Peacocks (2000) (TV) .... Sarah Bernhardt
The Funny Face of Broadway (1997), documentary by Rémy Batteault
Wall Street (1987) .... Woman at 'Le Cirque'
Chobizenesse (1975) .... Gigi Nietzsche ... a.k.a. Show Business (International: English title)
Au théâtre ce soir .... Francine (1 episode, 1974)
Pétrus (1974) TV episode .... Francine
Musidora (1973) (TV) .... Musidora
La vie rêvée de Vincent Scotto (1973) (TV) .... Gay Deslys
39° Gala de l'Union des Artistes at the cirque d'hiver in Paris (1972)
It Takes a Thief .... Madame Tanya Varhos (1 episode, 1969)
The Blue, Blue Danube (1969) TV episode .... Madame Tanya Varhos
T.H.E. Cat .... Countess De Laurent (1 episode, 1967)
Queen of Diamonds, Knave of Hearts (1967) TV episode .... Countess De Laurent
Mr. Broadway .... Vici (1 episode, 1964)
Maggie, Queen of the Jungle (1964) TV episode .... Vici
The Tab Hunter Show .... Andrea / ... (2 episodes, 1960–1961)
Girl Overboard (1961) TV episode .... Andrea
One Blonde Too Many (1960) TV episode .... Maria
Adventures in Paradise .... Therese (1 episode, 1959)
The Derelict (1959) TV episode .... Therese
Playhouse 90 .... Carla / ... (2 episodes, 1959)
Target for Three (1959) TV episode .... Estrella
Child of Our Time (1959) TV episode .... Carla
Behind Closed Doors .... Marcella (1 episode, 1959)
The Espionage Students (1959) TV episode .... Marcella
77 Sunset Strip .... Tosca (1 episode, 1959)
The Secret of Adam Cain (1959) TV episode .... Tosca
Me and the Colonel (1958) .... Cosette
King Creole (1958) .... Forty Nina
The Young Lions (1958) .... Françoise
The Sad Sack (1957) .... Zita
The Living Idol (1957) .... Juanita ... a.k.a. El Ídolo viviente (Mexico)
Meet Me in Las Vegas (1956) .... Lilli ... a.k.a. Viva Las Vegas! (UK)
Moonfleet (1955) (as Liliane Montevecchi of the Ballet de Paris) .... Gypsy
Daddy Long Legs (1955) (uncredited) .... College Girl
The Glass Slipper (1955) .... Tehara
Women of Paris (1953) (as Montevecchi)
Broadway The Golden Age, by the Legends Who Were There (2003) .... Herself ... a.k.a. Broadway (USA: short title) ... a.k.a. Broadway: The Golden Age (USA: short title) ... a.k.a. Broadway: The Movie (USA: short title)
Tout le monde en parle .... Herself (1 episode, dated 28 April 2001)
The 44th Annual Tony Awards (1990) (TV) .... Herself - Nominee: Best Actress in a Musical
Follies in Concert (1986) (TV) .... Solange Lafitte
The 37th Annual Tony Awards (1983) (TV) .... Herself - Presenter
The Hollywood Palace .... Herself - Singer / ... (3 episodes, 1965–1966) - Episode #4.10 (1966) TV episode .... Herself - Singer - Episode #3.19 (1966) TV episode .... Herself - Singer/Dancer - Episode #2.29 (1965) TV episode .... Herself - Singer/Dancer
C'est beau l'amour à Paris/Grain de poivre, Versailles, 1981
Nine: Original Cast Album (cast recording), Sony, 1982
Follies in Concert (cast recording), RCA, 1985
Nymph Errant, EMI, 1990
Grand Hotel: The Musical - Broadway Cast Recording (cast recording), RCA, 1992
Nine (1992 London Concert Cast - Highlights) (cast recording), RCA,1992
Divorce Me Darling! (cast recording), Jay Records, 1998
Follies - The Complete Recording (cast recording), Tee Vee Toons, 1998
On the Boulevard (original cast), Jay Records, 1998
La Tournée des Grands Ducs (various artists), Idol/Marianne Melodie, 2005
The Divas, One Reel/Teatro ZinZanni, 2006
Les Funambules (chansons d'amour pour tous), Blossom, 2017