Yvonne Marianne Elliman (born December 29, 1951)  is an American singer who performed for four years in the first cast of Jesus Christ Superstar . She scored a number of hits in the 1970s and achieved a #1 hit with " If I Can't Have You ." After declining success, she dedicated herself to her family, and after a long hiatus made a comeback album as a singer-songwriter in 2004.
Elliman's father was of Irish descent, and her mother shared Japanese and Chinese ancestries. She was born and raised in Honolulu, Hawaii , and graduated from President Theodore Roosevelt High School in 1970. Her father taught her how to play the piano. She played in the high-school band,  and after graduation she moved to London . 
Elliman's singing career began in 1969 in London where she performed as a singer at various bars and clubs . An unknown,  she was discovered by Tim Rice and Andrew Lloyd Webber , who asked her to sing Mary Magdalene's part in Jesus Christ Superstar , and later invited her to join the traveling cast, which she did for four years.  This performance led to a 1974 Golden Globe nomination for Best Actress in a Musical or Comedy for the film version of "Jesus Christ Superstar".  She had her first hit single in 1971 with the ballad " I Don't Know How to Love Him ", from Jesus Christ Superstar. The song was her first entry on the U.S. charts , peaking at #28 pop in 1971, although a cover version by Helen Reddy was a bigger hit.  In the end, she sang Jesus Christ Superstar on the 1970 concept album, in the original Broadway cast (1971), and on the 1973 film soundtrack. 
In 1971 Elliman moved to New York City for the Broadway production of Jesus Christ, Superstar, where she met Bill Oakes, who worked with Robert Stigwood . They got married soon after, and she was asked to sing backing vocals on Eric Clapton 's " I Shot the Sheriff " in 1974. She went on tour with Clapton, and afterward got her own recording contract with Stigwood's RSO Records . A first album, Rising Sun, produced by Steve Cropper , produced no hit singles, but her second album, Love Me, produced by Freddie Perren , gave her two top-20 hits, "Love Me" (written by Barry and Robin Gibb ), and a Barbara Lewis cover, " Hello Stranger ."  "Hello Stranger" topped the U.S. Adult Contemporary charts for four weeks, and was also a #15 Pop hit in 1977, while "Love Me" was a #14 Pop hit in late 1976/early 1977. 
In 1977, the Bee Gees were working on Saturday Night Fever and wrote " How Deep Is Your Love " for her, but Stigwood wanted the Bee Gees to perform it. Instead, she sang " If I Can't Have You ."  The song was a big hit, rising to #1 in the Billboard Hot 100 ;  it is often hailed as the best singing performance of her career. 
A few minor Top 40 hits followed in 1979, including the title theme song from the film Moment by Moment [a forgettable movie starring John Travolta and Lily Tomlin) and another disco track, " Love Pains ," which was a major club success. She appeared in a two-part episode of the television action series Hawaii Five-O during this period as an aspiring singer, performing the song "I Can't Get You Out of my Mind" with co-star James Darren . The single "Savannah" was also a minor hit, but shortly thereafter she decided to dedicate herself to her growing family of two children.