Lewis Hamilton and Nicole Scherzinger have apparently ended their four-year relationship, according to The Sun. Lewis Hamilton had been dating THE X FACTOR USA Judge, with the couple having once previously separated in early 2010.

A source told The Sun: "Nicole and Lewis have tried to make it work but realised it's just not happening so have called it a day once and for all. They've spoken at length about it but agreed there's no point as they never see each other. They spend their whole time on opposite sides of the world." With Lewis Hamilton dedicated to the Grand Prix Circuit and Scherzinger's hectic X-Factor schedule, the couple have barely seen each other since May. A second source further elaborated to The Mirror: "increasingly hectic schedules this year have meant limited face-to-face time. They've probably spent more time on the phone or on Skype than they have in person. Sadly, Nicole's job on X-Factor USA... appears to have come at the cost of her relationship... This, plus Lewis's crazy international jet-set lifestyle, put immeasurable strain on the pair". Apparently, the separation was amicable and Hamilton and Scherzinger have decided to remain friends. A spokesman for the couple has declined to comment.

Lewis Hamilton is apparently further devastated over the results of coming second during his recent race in Yeongam, Korea, whilst Nicole Scherzinger will make her live judging debut on The X-Factor USA next week when the contestants sing for the public for the first time.