It appears that things are not running smoothly in the relationship of Nicole Scherzinger and Lewis Hamilton.

Insiders say the X Factor judge and her racing driver boyfriend may be about to call it a day, as they are both struggling to make things work on a long distance basis.

Nicole has never been more busy, dedicating all her time to The X Factor and her music career, she was even forced to film her latest music video in a parking lot near Fox’s TV studios this week.

A source told The Mirror that their “unworkable schedules” are impacting Scherzinger and Hamilton’s relationship to such an extent, that they are now considering a split.

A source close to the formerly loved up pair said:

“Nicole and Lewis are both extremely busy people who lead incredibly hectic lives. Of late, schedule have just meant they cannot see each other as much as they would have liked.”

It’s the curse of Simon Cowell we think. It seems that no one, not even he, can maintain a long term relationship while working for the music mogul, as his shows take over everything else in the star’s lives.

Look at Cheryl Cole!