Former Pussycat Doll Nicole Scherzinger admits having a long-distance relationship with Lewis Hamilton is a ''challenge''.

The 36-year-old Sway singer revealed it can be tough on her and Formula One ace Lewis Hamilton to spend a lot of time apart.

Speaking to HELLO! magazine, Scherzinger said: "Our biggest challenge is long distance, but I feel like I'm mostly here in the UK, even though my home is in the US.''

The former X Factor judge added that she would like to start a family with Hamilton when the time is right: "I come from a big family and I'm a family person and one day, when God wills it, I will have a family but in the right time.''