She has two sisters, Ellen and Laura Ann (born 1983).King had a successful ski career and was on the Surbiton High Ski team with fellow pupil Chemmy Alcott.
Along with her bandmates, King appeared on Ghosthunting with... She also appeared in a Reality TV show with her bandmates, known as The Saturdays: 24/7.
On the show, The Saturdays performed exclusive tracks.
The Saturdays released a cover of "Just Can't Get Enough" by Depeche Mode.
The song debuted at number two in the UK, behind Flo Rida's "Right Round".
The fifth and final single from the album was "Work", which was the first single by the group to fail to reach the top 20.
The group later went on a tour titled The Work Tour.
King has appeared in two episodes of bebo-based online show Sam King portraying herself as an ex-girlfriend.
King also appeared on The King is Dead on BBC Three and Never Mind the Buzzcocks in 2010.
King was born in Wandsworth, London, England, the youngest of three daughters born to Susan (née Wykes) and Stephen King.