He was a shoulder for Cheryl Cole to cry on in the days leading up to her split with Ashley.

And now Dancing With The Star professional Derek Hough has been keeping Pussycat Doll Nicole Scherzinger company while her boyfriend Lewis Hamilton took part in the season-opening Bahrain Grand Prix.

Nicole and Derek, who are partnering each other in the U.S. dance show, nipped out for a cosy dinner together after rehearsal in Los Angeles.

Nicole Scherzinger leaves a rehearsal session, followed by her Dancing With The Stars partner Derek Hough, on Saturday

And it appeared smug-looking Derek, 24, was enjoying keeping the gorgeous singer occupied on Saturday night.

Nicole emerged from rehearsals, showing off her toned midriff in a cropped black vest top and a pair of low slung sweat pants.

Meanwhile, over in Bahrain, Lewis, 25, was gearing up for the opening race on Sunday, which saw him come in third place. He is now back in the UK.

Working hard: The Pussycat Doll seen arriving and, right, after rehearsals

Nicole, however, has to stay in Los Angeles in readiness for Dancing With The Stars, which kicks off later this month.

Baywatch star Pamela Anderson, actress Shannen Doherty and astronaut Buzz Aldrin have also signed up for the programme.

Lewis and Nicole split in January after 20 months together to concentrate on their careers.

In good company: She then went out for a cosy meal for two with Hough

But just a month later the pair reunited and were seen openly kissing in Hollywood.

Miss Scherzinger was by Hamilton's side as he was crowned world champion in Brazil in November 2008.

But last year saw them spending increasing amounts of time apart due to their hectic schedules.

Race ace Hamilton is now based in Switzerland while Miss Scherzinger lives in Los Angeles.

Best foot forward: The pair pose up in a promotional photo for Dancing With The Stars, which kicks off in the U.S. later this month