Kate Moss is 'throwing herself a wild birthday party' and is ready to 'let her hair down' following split from boyfriend of nine years

Newly single Kate Moss is planning a huge boozy birthday bash to celebrate her 51st birthday later this month. 

The supermodel is said to have finally called it quits last month with long-term boyfriend Nikolai von Bismarck, 37, after nine years together.

Now Kate, who lived in the Cotswolds with teetotal photographer Nikolai, has decided she 'wants to let her hair down' to mark her birthday with her famous pals. 

A source told The Sun: 'Last year, she celebrated her 50th at an intimate soiree in Paris, which was fairly pared down.

'But a lot has changed since then and Kate has said she wants this party to be like turning over a new leaf.

'Now that her daughter Lila is all grown up and she is single again, Kate feels like she wants to let her hair down and be carefree — which is not something she's been able to do for a long time.

'She is looking on the bright side of life. Although it's sad her relationship is over, she is throwing herself back into her social life and embracing the new year.'   

MailOnline have contacted Kate's representatives for comment.

It comes after insiders claimed Kate and her former boyfriend parted ways due to friction stemming from their different approaches to life.

A source told The Sun the exes remain on good terms but 'have been on and off for months', and eventually Kate felt the time was right to move on and cut ties.

'She felt they were going on different journeys in life. And, at 50, Kate feels fabulous and like she wants to get back out there and have some fun in time for Christmas.

'Despite being 13 years her junior, Nikolai wants to enjoy a quieter life. He remains on his sober path and they just have increasingly different hobbies and wants.

Representatives for Kate have been contacted by MailOnline for comment.

Kate shares daughter Lila Moss, 22, with ex her ex-partner Jefferson Hack.

Kate started dating Nikolai, who was rumoured to have dated Princess Beatrice in the early 2000s, in 2015 after she split from her musician ex husband Jamie Hince.

Having known each other for a number of years with the supermodel being pals with his mother, Countess Debonnaire von Bismarck, they struck up a romance.

Kate was pictured hand-in-hand with reggae legend Bob Marley's 27-year old grandson Skip in May.

After the photo emerged, Kate and Nikolai shared a very frosty reunion at the Gucci Cruise 2025 Fashion Show just days later.

Nikolai stared straight ahead as Kate repeatedly turned her back away from him and chatted with model daughter Lila.

Kate gave up alcohol back in 2017 in favour of juice fasts and reformer Pilates, even selling her own range of teas and skincare products through her beauty and wellness brand, Cosmoss.

But after ringing in her 50th birthday this year, she has made girl's nights out part of her wellness routine.

For the milestone, she threw a raucous party in classic Kate style, with dancing until 2am, a makeshift catwalk and a 30-strong group of her closest A-list pals and fashion's finest names.

Since then, she's been seen dancing wildly at a Stevie Nicks concert and celebrating her renewed relationship with sister Lottie, 26, by hitting the town together.

Notably absent, however, was Nicolai who has been sober since 2017 and has said he doesn't 'like being in any sort of limelight'.

The couple were last seen in public together in June this year, attending the Dior show at Paris Fashion Week.

After her heart was shattered by Johnny Depp, Jamie Hince was the only man to persuade her to marry but couldn't tame her and her affair with Pete Doherty hit the rocks because of his cocaine habit.