"I have so much to accomplish first and it's kind of a full-time job being on X Factor. It's not like a nine to five. It's constant, for months."
However, the sources also blamed Rita’s fear of a Jessie-J effect on her reputation: “She also saw how Jessie J’s album struggled after she appeared as a coach on The Voice, and thinks the two could be connected”
The British songstress is in LA at the moment, working on her new single featuring boyfriend DJ Calvin Harris. Cowell, who never made a mystery of his high regard for Rita’s performance as a judge, invited her to his Californian home two weeks ago. However, she could not be swayed.
After leaving the X Factor’s UK version for the States, Cowell is expected to make a return to the British judging panel alongside long-time judge and friend Louis Walsh. Yet, Cowell will have to find someone else to replace Gary Barlow and Nicole Sherzinger, who have both announced they will not return to the talent show.