Katherine Jenkins looks striking in backless playsuit

Little miss nautical: Super svelte Katherine Jenkins looks striking in backless playsuit

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UPDATED:

14:53 GMT, 3 April 2012

Katherine Jenkins had a night off from sequins and feathers as she slipped into a striking all-in-one.

The Dancing With The Stars beauty celebrated topping the leaderboard again with a visit to West Hollywood venue Mixology 101, striding out in a navy trouser playsuit with sexy crisscross straps.

Earlier in the evening, the Welsh songbird had scored an impressive 29 out of a possible 30 for her waltz with partner Mark Ballas performed as part of the Most Memorable Year week on the show.

La-La-Land: Katherine Jenkins steps out in Hollywood for a Dancing With The Stars afterparty

La-La-Land: Katherine Jenkins steps out in Hollywood for a Dancing With The Stars afterparty

Super svelte: Katherine has lost a considerable amount of weight since starring on the show

Super svelte: Katherine has lost a considerable amount of weight since starring on the show

Super svelte: Katherine has lost a considerable amount of weight since starring on the show

As Katherine ventured out for her evening in La-La-Land, she looked nothing short of breathtaking.

She looked incredibly classy with her
hair pinned back and perfectly executed make-up to conceal the fact she
had been crying and could potentially fall victim to puffy eye syndrome.

Jenkins, 31, had wept in front of the
cameras on the ABC show after selecting her memorable year as 1996,
when her father died of lung cancer at the age of 70 – when she was just
15.

Best foot forward: Contestants Katherine and Maria Menunos put their rivalry aside on night out

Best foot forward: Contestants Katherine and Maria Menunos put their rivalry aside on night out

Maria Menounos

Maria Menounos and Chelsie Hightower

Letting their hair down: Maria Menounos and Chelsie Hightower enjoy a night away from the dancefloor

The opera star looked ultra feminine
despite the slightly androgynous look of the high-neck and billowing
flares ensemble, as she showcased her new silhouette after having lost
nearly two stone.

She put her rivalry with fellow contestant Maria Menunos to one side, with the girls appearing close as they stepped out arm-in-arm and later left in the same car.

The television presenter, 33, who is also starring on the show, is paired with Derek Hough.

Maria tweeted: 'What a night!!!!loved Dancing the rumba w/ @derekhough.I feel such a sense of accomplishment w/this dance in particular.so happy!thanks der.'

Triumphant: Katherine and partner Mark Ballas danced a waltz to Josh Groban's To Where You Are

Triumphant: Katherine and partner Mark Ballas danced a waltz to Josh Groban's To Where You Are

Katherine is fast proving to be a
popular contender of season fourteen, with former DWTS contestant
Kirstie Alley tweeting her support last night: '@KathJenkins YOU ARE A
PHENOMENON !!!!!!!!' What an extraordinary human being you are!!!! I
adore watching your spirit shine…it's blinding.'

And the dancing hopeful was joined by
her No1 fan, with Katherine revealing: 'With my mum after tonight's
show… So good to have her here in America!'

New best friends: Katherine and Maria were seen leaving the club together

New best friends: Katherine and Maria were seen leaving the club together

The shrinking star said she likes to
be healthy and the recent weight loss has given her confidence a boost
when it comes to wearing risqu dresses – but she is determined not to
lose her curves.

Katherine said: 'I’m burning so much
energy now that it’s hard to put the weight back on. But I like to be
curvy so I’m trying not to lose any more.

'But I do want to be healthy, too – there are so many skimpy costumes to wear. That scares me!'

Double act: Professional dancer Val Chmerkovskiy is paired with comedienne Sherri Shepherd, while Disney star Roshon Fegan is competing with Chelsie Hightower

Double act: Professional dancer Val Chmerkovskiy is paired with comedienne Sherri Shepherd, while Disney star Roshon Fegan is competing with Chelsie Hightower

Thinking about those dance moves Derek Hough looked deep in concentration as he left the bar

Thinking about those dance moves Derek Hough looked deep in concentration as he left the bar