LAS ANGELES: Nicole Scherzinger and Lewis Hamilton have split after five years together.The X Factor judge and the Formula 1 racing driver, who went public with back in 2007, are believed to have ended their relationship as their busy work schedules meant they just didn’t get to see each other.A source said: ‘Nicole is just so heartbroken and completely devastated.’ A spokesperson for Nicole confirmed the split to Mail Online. The news comes just a matter of weeks after 28-year-old Lewis hinted that he was planning to propose to Nicole, 34. He said: ‘We’ve been together for five years, which is quite a milestone really. But hopefully in the near future. Maybe before we get to six years.’Nicole has regularly been seen supporting Lewis at his various Grand Prix commitments, but admitted previously she is only there for her beau, rather than knowing anything about the sport as a whole.–MO