Brought up in Birmingham, England, Williams began working as a model, eventually gaining the title Miss Black Beautiful in a contest in 1973.

"[1] It turned out that it was not important if Williams could sing or not, since the job was to dance and mime to a disco song called "Baby Do You Wanna Bump" that producer Frank Farian had recorded the vocals for, but was unable to promote himself since he had a career as a schlager singer in his own name.

[5] The classic Boney M. lineup as Bobby Farrell, Maizie Williams and Marcia Barrett performing "Baby Do You Wanna Bump" in the Dutch music show, Top Pop, was first recorded on 2 January 1976.

Both Liz Mitchell and Marcia Barrett were singers and would participate in the group's recordings together with producer Frank Farian who did the deep male voice.

Williams and Bobby Farrell did not sing on the records since "their voices weren't suited for this particular kind of music" as Farian put it in a Bravo interview in 1978.

This did not create a scandal, firstly as this practice had become commonplace within the disco genre during the late 1970s, and secondly as both Williams and Farrell did sing during the group's many live performances during their extensive world tours between 1977–1979.

In this version of Boney M, Williams would finally get her chance to front as lead singer during the group's rendition of hits such as "Brown Girl in the Ring", "Hooray!

Besides still touring the world, Williams released her first solo record in December 2006, Call Upon Jesus, including the download single "Praise Be Unto Him".