"Fit but You Know It" is a song by English rapper and producer Mike Skinner under the music project the Streets.

Skinner told the Daily Star that the lyrics refer to former S Club 7 member Rachel Stevens who was embarking on a solo career at the time the song was recorded.

[2] James Snodgrass of NME called it, "a great first single, it takes a guitar chug and a boozy rant and combines them to joyous effect.

"[3] Decca Aitkenhead of The Guardian said that the song "managed to capture the comically crude but complex sexual politics of a busy late-night chip shop on a lads' holiday".

[5] The music video for the single has a cameo of the cast of The Football Factory which includes Danny Dyer and Frank Harper.