Amanda de Cadenet and Demi Moore show off age-defying looks at A&E TV Network party

Demi Moore might be nearing 50, while Amanda de Cadenet is almost 40, but neither of the friends are showing signs of ageing.

Despite her former party girl lifestyle, 38-year-old de Cadenet appeared rejuvenated and fresh faced while posing next to Moore at the A&E Television Networks party in New York.

The former wife of Duran Duran bassist John Taylor, who is now married to Strokes’ guitarist Nick Valensi, dressed to kill in a fitting black dress and strappy heels.

What's your secret? Demi Moore, 48, and Amanda de Cadenet, 38, are showing little sign of ageing

The photographer stood with her arm around Moore, who was wearing a pair of cropped satin red trousers, a black coat and heels.

With her dark hair loose and glossy around her shoulders, the ever-youthful actress looked decades younger than her 48 years.

Moore and de Cadenet are both executive producers for a U.S. cable network interview series called The Conversation.

Appearing on Lifetime TV, The Conversation ‘will provide a refreshing and modern take on celebrity interviews as de Cadenet sits down with some of the world’s most famous women to discuss topics universal to all women’, according to the channel.

Looking good: Amanda de Cadenet, fresh faced in a tight black dress in New York last night, and right, in her party-girl heyday in the 90s

Looking better: Demi Moore, appearing decades younger than her 48 years last night, and right, the actress poses in 1981

The series will be produced by de Cadenet's company, called Decadenet, and hosted by the 90s UK television personality too.

Earlier in the week the Hollywood actress, who is married to Ashton Kutcher, attended the Met Costume Gala in New York City.

Then she was much more dressed up, in a Prabal Gurung dress with a Philip Treacy feathered Showgirls headpiece.

Catherine Bell, Brigid Brannagh, Sally Pressman and Wendy Davis

But it hasn't been one long party for Moore.

On Saturday night she was summoned to collect her daughter Tallulah Willis from a Los Angeles police station.

The teenager and her friends had been caught carrying alcohol, and cited for underage possession. Because she is only 17 Tallulah was then taken to a police station, where her mother arrived to collect her.

Tallulah, born in 1994, is one of three daughters Moore has with ex-husband Bruce Willis.

Stylish: Demi Moore in red satin trousers at the A&E Television Networks party