What divorce? Gleeful Ashton Kutcher beams at Hollywood premiere

Clutching glamorous co-star Lea Michele, the young screen star was seen without his wedding ring.

His six-year union with Demi Moore lies in tatters after the 49-year-old actress last month announced she was divorcing her love-rat husband.

Demi called time on the relationship after blonde Sara Leal, 22, said she romped with the Two And A Half Men actor on the couple's sixth wedding anniversary in October.

She said in a statement: "It is with great sadness and a heavy heart that I have decided to end my six-year marriage to Ashton.

"As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life."

She added: "This is a trying time for me and my family, and so I would ask for the same compassion and privacy that you would give to anyone going through a similar situation."

Kutcher then wrote on Twitter: "I will forever cherish the time I spent with Demi. Marriage is one of the most difficult things in the world and unfortunately sometimes they fail."

But last night, at the gala opening of New Year's Eve at Gramuan's Chinese Theatre in Hollywood, 33-year-old Kutcher successfully hid any pain he may have had because of the split.

He even had a playful peer cosn his co-star's plunging front.

In the romantic comedy he plays the aptly-named character Randy.

The ensemble piece features contributions from a host of Hollywood royalty including Robert De Niro, Halle Berry and Jessica Biel.

Fellow cast members Michelle Pfeiffer and Zac Efron also attended the premiere and posed happily together as did husband and wife Josh Duhamel and Fergie from the Black Eyed Peas.

Kris Humphries 'doesn't want Kim Kardashian ring back after divorce'

Kris Humphries is said to be taking his split from wife Kim Kardashian "day by day".

The pair married in a $20 million fairytale ceremony in August. However, Kardashian filed for divorce on Monday after only 72 days of marriage.

Humphries, who recently cancelled an appearance at a Las Vegas party amid the break-up, has reportedly insisted on ending his relationship with Kardashian in the most amicable manner possible.

> Kris Jenner: 'Kim Kardashian, Kris Humphries wedding a mistake, no sham'
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"He's getting through it day by day. It's a tough situation. It's not an easy position for anyone," a source explained to People.

"He's a gentleman and wants to make things right - the ring, and any gift he gave her, was out of love and he doesn't expect them back. He has made concerted efforts to try and return the gifts to their guests. They're figuring it all out."

Kardashian recently pledged to donate $200,000 to the Dream Foundation for the gifts she received at the wedding.

The reality star cancelled her Australian tour on Thursday, pulling out of a scheduled appearance at the Melbourne Cup Carnival.

Lucy Davis and Owain Yeoman divorce: The Office and Mentalist star end marriage

The Office star Lucy Davis has divorced her husband of five years, The Mentalist heartthrob Owain Yeoman.
The couple separated in January, and filed divorce papers in L.A. County Superior Court earlier this month, citing irreconcilable differences.

Lucy and Owain married in 2006 following a whirlwind six month romance, and have no children.
 Winter wedding: Lucy Davis married The Mentalist star Owain Yeoman in St Paul's Cathedral on 9 December 2006
The couple were able to marry in St Paul's cathedral as Lucy's father, Jasper Carrott, was awarded an OBE in the New Year's Honours in 2002.
The lavish event was attended by 300 guests, fellow The Office stars, Mackenzie Crook, Martin Freeman, Ewen MacIntosh, Joel Beckett and co-writer and co-director Stephen Merchant.

There have been reports of the marriage being on the rocks since 2008 however, as Lucy was spotted out without her wedding ring

In February the pair released a statement saying: ‘We have separated but are on good terms and would kindly ask for our privacy to be respected during this time.’
 Difficult times: The couple, pictured in 2008 at the launch party for BritWeek in LA, endured a few rocky patches that year
A source then revealed: ‘They have had troubles in their marriage before but this split looks like the end. Owain won’t talk about it and Lucy is devastated.
Owain has already moved out of the marital home and he appears to have moved on.  He has been seen out and about in Hollywood with other girls.’

The actors met each other in Los Angeles after both moving to the US to pursue their acting careers and shared a two-bedroom cottage in the city’s trendy Larchmont Village area.

38-year-old Lucy is still best known for her role in Ricky Gervais’s comedy The Office, in which she played lovelorn secretary Dawn, whose long flirtation with sales rep Tim – played by Martin Freeman – eventually resulted in them kissing during the final series.
Her latest film, Some Guy Who Kills People, has garnered positive reviews.