(Cover) - EN Showbiz - Nicole Scherzinger and Lewis Hamilton have reportedly ended their four-year relationship.
The pair have called time on their high-profile romance after realising their conflicting schedules do not allow them to spend any time together.
Nicole and racing driver Lewis split in January this year, citing work issues as the reason. However, sources close to pair say this time the break-up is final.
"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," a friend told British newspaper The Sun.
"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."
Nicole has had a particularly busy year.
The 33-year-old beauty has released and promoted her debut solo album Killer Love, after parting ways with the Pussycat Dolls.
She has landed a lucrative role as a judge on the US version of The X Factor. Nicole also filmed her part in Men In Black III.
Meanwhile, Formula One driver Lewis has been touring with his team McLaren.
Nicole is understandably upset about the situation.
"Although they came to an amicable decision, Nicole is actually devastated about it. She thought Lewis was the one," the source explained.
"They still genuinely care for each other but they've decided to be adult about it and go it alone. There are no hard feelings."
An insider confirmed last night to another newspaper that Lewis and Nicole have been having problems for the past six weeks. The source told British publication The Mirror that the pair were becoming increasingly frustrated by their separate lives.
"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," the source explained.
"Sadly, Nicole's job on X Factor USA which, professionally, has been an unmitigated success appears to have come at the cost of her relationship. Lewis found their intense working relationship hard to contend with.
"This, plus Lewis's crazy international jet-set lifestyle, put immeasurable strain on the pair."
The pair met at the MTV Awards in Munich in 2007. (C) Cover Media