Don't Hold Your Breath singer Nicole Scherzinger and her Formula One ace beau Lewis Hamilton have parted ways after five years together.

The celebrity couple, who went public with their relationship back in 2007, are believed to have ended their relationship due to their hectic work schedules.

A representative 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 is expected to make an appearance at the X Factor auditions in Cardiff later this week.