She sang lead and background on several of Charles's hit songs of the late 1950s and early 1960s, but after she was ejected from the group in 1964 she attempted a solo career with the labels Mercury Records and Sound Stage 7 before she was dropped from both of them due to her music not charting.
In the early 1950s, at the age of 18, she moved to New York City with her older sister and signed a record deal with Lamp records and released her first single, which was "Good Treatment / Every Time" in 1954, but the single did not hit the charts and she left the label in 1955.
In 1956, she replaced Beulah Robertson in the Cookies, joining existing members Dorothy Jones and Darlene McCrea.
In 1958, Hendrix and McCrea left the Cookies and later formed the Raelettes as Charles's backing singers.
[5] After leaving the Raelettes, in 1965 Hendrix signed a record deal with Mercury Records and the label released the first two out of five singles, ("Now The Hurts On You" and "Baby"), but both of the singles failed to appear on the charts, causing an increase in her use of alcohol and more damaging drugs.
They both survived, but Hendrix suffered neck injuries and slight loss of hearing in her right ear.
Most sources say her death was caused by a heroin overdose,[10] but there are rumors she died in a car crash or from cancer.