Cyd Charisse, a former co-star of Fred Astaire and Gene Kelly, died last night in Los Angeles aged 87.

The actress-dancer from Texas died at Cedars-Sinai Medical Center after suffering an apparent heart attack on Monday, her publicist Gene Schwam said.

The long-legged star appeared in a number of films, but her fame came from the musicals of the 1940s and 1950s.

High kicks: Cyd with Gene Kelly in 1952's Singing In The Rain

She sang and danced with legends Gene Kelly in Singin' in the Rain, and Fred Astaire in Silk Stockings.

At the height of her fame the film company said her long legs were insured for a million dollars.

She also forged a popular song-and-dance partnership on television and in nightclub appearances with her husband, singer Tony Martin.

Her height was 5 feet, 6 inches, but in high heels and full-length stockings, she seemed serenely tall, and she moved with extraordinary grace. Her flawless beauty and jet-black hair contributed to an aura of perfection that Astaire described in his 1959 memoir, "Steps in Time," as "beautiful dynamite."

Charisse arrived at MGM as the studio was establishing itself as the king of musicals. Three producers — Arthur Freed, Joe Pasternak and Jack Cummings — headed units that drew from the greatest collection of musical talent.

Hollywood great: Cyd Charisse, with Fred Astaire in the 1953 film The Band Wagon, died on Tuesday

Dancers, singers, directors, choreographers, composers, conductors and a symphony-size orchestra were under contract and available. The contract list also included the screen's two greatest male dancers: Astaire and Kelly.

Astaire, who danced with her in "The Band Wagon" and "Silk Stockings," said of Charisse in a 1983 interview: "She wasn't a tap dancer, she's just beautiful, trained, very strong in whatever we did. When we were dancing, we didn't know what time it was."

She first gained notice as a member of the famed Ballet Russe, and got her start in Hollywood when she was hired for a ballet sequence  in a 1943 Don Ameche-Janet Blair musical, "Something to Shout About."

Although that film failed to live up to its title, its ballet sequence attracted wide notice, and Charisse (then billed as Lily Norwood) began receiving movie offers.

She signed a seven-year contract at MGM and also got a new name, the exotic "Cyd" instead of her lifelong nickname Sid.

Music lovers: Cyd with her husband in Beverly Hills in 2006

The 1952 classic "Singin' in the Rain" marked a breakthrough.

When Freed was dissatisfied with another dancer who had been cast, Charisse inherited the role and danced with Kelly in the "Broadway Melody" number that climaxed the movie. She stunned critics and audiences with her 25-foot Chinese silk scarf that floated in the air with the aid of a wind machine.

Charisse also danced with Gene Kelly in "Brigadoon," "It's Always Fair Weather" and "Invitation to the Dance." She missed what might have been her greatest opportunity: to appear with Kelly in the 1951 Academy Award winner, "An American in Paris." She was pregnant, and Leslie Caron was cast in the role.

Charisse later recalled: 'MGM was a fairyland. You'd walk down the lot, seeing all these fabulous movies being made with the greatest talent in the world sitting there. It was a dream to walk through that lot."

Like most young MGM contract players, she was schooled in drama and voice, and diction lessons eliminated her Texas accent. The singing lessons didn't take, however, and the songs in her musicals were dubbed.

She graduated to featured dancer in sequences for such films as "Till the Clouds Roll By," "Fiesta," "On an Island with You" and "Words and Music." She also appeared in such dramatic films as "East Side, West Side," "Tension" and "Mark of the Renegade."

"Silk Stockings" in 1957 marked the end of her dancing career in films, as well as the twilight of the movie musical. With the film business suffering from the onslaught of television, MGM dismantled its great collection of talent. Musicals were too expensive, and foreign audiences had soured on them.

Charisse continued with dramatic films, several of them made in Europe. She and Martin took their musical act to Las Vegas and elsewhere. In 1992 she finally made her Broadway debut, taking over the starring role as the unhappy ballerina in the musical of "Grand Hotel."

Her name was Tula Ellice Finklea when she was born in Amarillo, Texas, on March 8, 1922. From her earliest years she was called Sid, because her older brother couldn't say "sister." She was a sickly girl who started dancing lessons to build up her strength after a bout with polio.

At 14 she auditioned for the head of the famed Ballet Russe, and became part of the corps de ballet and toured the U.S. and Europe. To appear with the nearly all-Russian company, she was first billed as Celia Siderova, than as Maria Istromena.

At one point during the European tour, she met up again with Nico Charisse, a handsome young dancer she had studied with for a time in Los Angeles. They married in Paris in 1939.

The Ballet Russe disbanded after the war broke out, and the newlyweds returned to Hollywood. In 1942, a son, Nicky, was born.

In 1948, the year after she and Nico divorced, Charisse married Martin. Her second son, Tony Jr., was born in 1950.