Notable songs she has written or co-written include Beyoncé's "Freedom", Naughty Boy's "Runnin'" and Britney Spears's "Private Show".

After completing her A-Levels, she worked as a youth mentor for four years to help young musicians and songwriters.

[3] Williams moved to full-time songwriting in 2006 after losing her voice from muscular tension.

[6] Williams has written tracks for Girls Aloud, the Saturdays, Kylie Minogue and Alesha Dixon.

[8] Williams was appointed Member of the Order of the British Empire (MBE) in the 2024 New Year Honours for services to music.