"Chick Fit" was co-written by group member Shaznay Lewis in collaboration with the song's producer Rick Nowels.

On 15 January 2007, All Saints announced on their official website that "Chick Fit" was going to be released as the second single from Studio 1 on 26 February 2007.

[3] Following the poor sales of Studio 1 All Saints were en route to being dropped by their label Parlophone Records before "Chick Fit" was released.

[4] Parlophone then decided to release "Chick Fit" as a promotional, download-only single to cut costs following the poor performances of All Saints' Studio 1 and fellow labelmate Robbie Williams' Rudebox.

[...] [the video] saw the girls in their JJB finest getting vaguely friendly with some rent-a-crunkers and demolish a cheap drum kit somewhere in the CD:UK studio.