LOS ANGELES : Ann Blyth, a versatile Hollywood star who received an Oscar nomination at 17 as Joan Crawford's wayward daughter in "Mildred Pierce," sang opposite Mario Lanza and Howard Keel in such MGM musicals as "The Great Caruso" and ended her film career before age 30, has died at age 98.

Blyth died Wednesday of "natural causes" at her home in Rancho Santa Fe, California, according to her daughter, Eileen McNulty. Blyth's family was at her side.

One of the last surviving actors from the Hollywood studio system, Blyth appeared in youth movies as well as dramas such as "Another Part of the Forest," and her co-stars included Bing Crosby, Power, Gregory Peck and Robert Mitchum. Blyth had stopped appearing in films by the end of the 1950s when she chose to spend more time with her children. But she would work in TV musicals and dramas and tour in concerts and musicals from "Show Boat" to "The Sound of Music."

She was acting and singing from an early age and her first big break came at 13 when she was cast as Paul Lukas's daughter in Lillian Hellman's anti-Nazi play, "Watch on the Rhine," which also starred Bette Davis. She stayed with the play for almost a year on Broadway and a year on the road.

When "Watch on the Rhine" appeared in Los Angeles, Universal Studio signed her to a term contract starting at $175 a week. A dark-haired actor with a melodic singing voice, she appeared with a young Donald O'Connor in low-budget musicals such as "Chip Off the Old Block" and "Bowery to Broadway." The loan-out to Warner Bros. for "Mildred Pierce" elevated Blyth's career and led to grown-up roles.

Good at being bad

Like "Double Indemnity," adapted for the screen by Billy Wilder in 1944, "Mildred Pierce" was a James M. Cain thriller about vengeance and calculation. Crawford won the 1945 Oscar as a waitress who rises to own a string of Los Angeles restaurants. Blyth was nominated in the supporting role as Mildred's spoiled daughter, Veda, who seduces her mother's second husband (Zachary Scott), then riddles him with bullets in a jealous rage.

Directed by Michael Curtiz of "Casablanca" fame, "Mildred Pierce" was a memorable piece of film noir that took place mostly at night. For Blyth it was a major change from the cheery musicals she had been known for. It was also a stretch for an actor who was the subject of magazine articles entitled "Incorruptible!", "Angelic Annie" and "Ann Blyth: Success Without an Enemy."

In 1946, Blyth broke her back in a toboggan accident, and it appeared her career might be over. She spent seven months in a body cast and another seven months in a wheelchair, relying on her Roman Catholic faith for courage.

"The busy, exciting world I had known faded away, and my life slowed down to little things," she later told The Associated Press. "But even here I found myself blessed, for a new sense of prayer began to unfold to me."

Once recovered, she appeared as the love interest for Sonny Tufts in "Swell Guy," Howard Duff in "Brute Force" and Mickey Rooney in a prizefight movie, "Killer McCoy." She displayed her dramatic skill as the young woman in love with a suspected wife-killer, Charles Boyer, in "A Woman's Vengeance."

Her strongest role after "Mildred Pierce" came with "Another Part of the Forest," Hellman's prequel to her stage and film drama "The Little Foxes." Blythe appeared as the young Regina Hubbard, created as an adult on Broadway by Tallulah Bankhead and in the film by Bette Davis.

Add a little music

Blyth's career made a turn in 1951 when she starred with Mario Lanza in "The Great Caruso." Her lilting soprano made an ideal match for his tenor, and they were cast in "The Student Prince." But the temperamental Lanza dropped out after recording his songs, and British actor Edmund Purdom acted his role and mouthed the songs. Blyth co-starred with Howard Keel in "Rose Marie" and "Kismet."

Her other films included "Top o' the Morning" with Crosby, "The World in His Arms" (Peck) and a reunion with O'Connor, "The Buster Keaton Story." Her last film was in 1957, "The Helen Morgan Story," which co-starred Paul Newman.

Born in 1928 in Mount Kisco, New York, to an Irish mother and English valet father, she grew up in New York City. After the father left the family, Nan Blyth supported herself and two daughters by washing clothes and working in beauty parlors.

She had high hopes for daughter Ann's future as an actress, and at 5 the girl began appearing on a New York radio show. She continued as a radio performer and spent three years studying and performing with the San Carlo Opera Company.

After becoming a movie star, Blyth admitted of her early career: "I'd become blue and despondent when I failed to get a job, and my mother's encouraging words made me want to try again." Before the actress's breakout performance in "Mildred Pierce," her mother died of cancer.

In 1953, Blyth married Dr. James McNulty, brother of tenor-comedian Dennis Day. They had five children and remained married until McNulty's death, in 2007. A few weeks before son Timothy was born in 1954, she made television history of a sort performing the song "Secret Love" at the Oscars — visibly pregnant as she sang, "Once I had a secret love ... and my secret love's no secret anymore."