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Lewis and Nicole rev up their romance once more

Formula One star Lewis Hamilton is back together with Pussycat Doll Nicole Scherzinger, he has confirmed.

The 25-year-old British racing driver and the US pop star (31) said they were splitting in January to concentrate on their careers.

However the pair, who had vowed to remain friends, are an item once again, after finding a compromise with their work-life balance.

Hamilton said: "Things are good. She's working really hard on her album and on Dancing With The Stars and I can't wait to see how well she does with that."

He added: "She's supporting me with my racing so we're focusing on our careers and we're doing our best to stay in touch and keep strong."

However, Hamilton said there was "no truth" in rumours of marriage. The McLaren driver, who begins this season's Formula 1 campaign at the weekend in Bahrain, confessed he was in the best physical shape of his career, and his ultra-fit training partner, Scherzinger, should receive the credit.

"We go to the gym together quite often and she goes running with me," he said. "She does her own programme and I do mine and it's pretty cool."

He added: "We try not to compete on many things because she can keep up with pretty much anything."

However, the biggest obstacle in Hamilton's fitness regime are the ravenous local dogs around Lake Geneva, where he goes jogging.

He said: " I've been attacked -- dogs barking and trying to run after me but I keep cool... I just give the dog a kick."

By Tom Rayner