Pop star Nicole Scherzinger has reportedly ended her on/off relationship with British racing driver Lewis Hamilton for good, just weeks after moving to his native U.K.

The former Pussycat Dolls singer, who began dating the Formula One ace in 2007, left the U.S. and relocated to Britain in November (14) amid reports she wanted to be closer to her boyfriend, who is based in Europe.

However, a new report published by Britain's The Sun newspaper suggests the romance has finally ended for good, following several previous splits over the years.

A source tells the newspaper, "It really is over this time. Nicole has finally had enough... She's completely gutted and feels lost about her future... They spend so much time apart that things just became untenable. Lewis's job means he has no choice but to fly around the world constantly. And Nicole has her own work commitments... That means over the course of the year they spend more time apart than together."

The stars began dating in 2007, and reunited after break-ups in 2010, 2011 and 2013.

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