Cole 'works with Knight on Polydor shoot'

Cheryl Cole has reportedly conducted a secret shoot with famed fashion photographer Nick Knight.

According to The Sun, snapping the Girls Aloud singer for Polydor presented a different challenge for Knight, who won the Moet Chandon Fashion Tribute for 2006.

Knight said: "Although Cheryl is photographed all the time by the paparazzi, she is not in front of the camera in the way professional models are - she is less used to the process.

"Cheryl was great to work with, though. She is incredibly beautiful - it is just a different kind of shoot with an experienced model."

Cole recently revealed that she had dyed her hair red after finishing filming for the boot camp rounds of The X Factor because she had never tried the colour before.