Simon Cowell - Simon Cowell's Rules For Cheryl

Simon Cowell wants Cheryl Cole to stay single.

The music mogul has reportedly ordered the 27-year-old singer - who is a judge on his UK TV show 'The X Factor' - to curb her rumoured romance with dancer Derek Hough in order to concentrate on getting back to full health after recently been stricken with potentially-fatal malaria.

A source told Reveal magazine: "Simon has had serious words with Cheryl and gave her a list of things she needs to sort out.

"He's demanded that she puts her love life on hold - he feels Derek is a distraction that she simply doesn't need. Derek is always hanging around on set with her and Cheryl is constantly trying to keep him happy."

The 50-year-old star is also said to be planning to find a lifestyle coach to help the 'Fight for This Love' singer - who split from soccer star husband Ashley Cole in February following allegations he had been unfaithful - juggle her hectic schedule.

The source added: "Simon wants Cheryl to accept more help, rather than try and battle on by herself.

"He told her everyone in the US has a lifestyle guru and that he will get someone to work with her.

"Cheryl hates the idea because she is a very private person, but Simon is insisting on it. He believes having someone with her is the only way to guarantee she will eat, sleep and talk about her problems."