Nicole Scherzinger can now devote all of her attention to The X Factor.
Following a back-and-forth four-year relationship with racecar driver Lewis Hamilton, sources tell Us Weekly this couple has finally called it quits.
"They were just never together and saw no end to that," an insider said. "Their careers have them working in separate places. Being apart that much never works, so they decided to end it."
Scherzinger and Hamilton met backstage at the MTV Europe Awards in Munich, Germany in November 2007. They split in January 2010, but reconciled soon after.