They’ve been tough as thieves since they launched their band, Girls Aloud, in 2002.

And over the weekend, Kimberley Walsh paid tribute to her long friendship with her close friend Cheryl, as the star celebrated her 40th birthday.

Cheryl and her nearest and dearest enjoyed a ‘magnificent weekend’ at the Wilderness Reserve, where they brought in their milestone year with a minimalist celebration.

Kimberley, 41, shared a slew of snaps on her Instagram grid from the getaway, including an adorable photo of Cheryl hugging her seven-year-old son, Bobby.

In the photo, they both sported paper crowns while Cheryl opted for a comfy orange jumper and a casual look for her birthday dinner.

Nice! Over the weekend, Kimberley Walsh paid tribute to her longstanding friendship with her close friend Cheryl, as the star celebrated her 40th birthday.

Back to basics: Cheryl and her nearest and dearest enjoyed a ‘magnificent weekend’ at the Wilderness Reserve, where they brought in their landmark year with a scaled-down celebration.

Alongside the images, she wrote: ‘The most beautiful days celebrating this one! Grateful for 20 years of friendship. I love you Cheryl. Here’s the next chapter…’

Another image showed his bandmate, Nicola, who had also joined them on the journey holding a candle for Kimberley’s son to blow out.

Nicola, 37, commented on a string of hearts below the snaps.

Meanwhile, Girls Aloud singer Nadine Coyle, who didn’t appear to be on the trip, wrote: ‘Queen of content! These look great!

Other snaps posted by Kimberley showed her husband, Justin Scott, spending time with their sons, Bobby, Cole and Nate.

Cheryl avoided a huge party when she celebrated her 40th birthday with a luxurious glamping getaway and ‘fire feast’ at the posh reserve in Suffolk, where prices start from £1,299 a night for a three-bedroom holiday home.

Cheryl and her friends toasted marshmallows and enjoyed a champagne bar in the woods.

The mother-of-one was also greeted by a Jeep that was packed to the brim with luxury essentials like fluffy white robes and iced drinks.

Throwback: Kimberley and Cheryl have been tough as thieves since their band, Girls Aloud, launched in 2002 (pictured with Nadine Coyle, Nicola Roberts and the late Sarah Harding)

Meanwhile, Girls Aloud singer Nadine Coyle, who didn’t appear to be on the trip, wrote: ‘Queen of content! These look great!

Oh! Another image showed her bandmate Nicola, who had also joined them on the trip holding a candle for Kimberley’s son to blow out.

Hanging out: Other snaps posted by Kimberley showed her husband, Justin Scott, spending time with their sons, Bobby, Cole and Nate.

The former Girls Aloud member looked sensational for her celebrations in a pink crop top and high-waisted green pants.

Shielding her eyes with sunglasses, Cheryl completed the ensemble with a fedora as she could be seen walking her dog along the picturesque river.

The group then headed into the forest for dinner, where they ate in a huge teepee that was decorated with beautiful flowers.

Diners enjoyed steaks cooked over an open fire before toasting marshmallows for dessert.

They later got into their chauffeured cars and appeared to be taken to more comfortable lodgings for the night.

According to its website, the Wilderness Reserve boasts “peace and quiet” on its sprawling property.

Describing it Fire Feast as: ‘Set in a secluded forest, dine among the ancient treetops with one of our most magical dining experiences yet.’

‘Our team will accompany you along leafy paths deeper and deeper into the forest until the smell of roasting meat, fish and vegetables fills the air; when the clearing becomes visible, an immaculately set table of white linen and fresh flowers await you while the bar will have your welcome drink ready.’

Low-key: Cheryl avoided a huge party when she celebrated her 40th birthday with a luxurious glamping getaway and ‘fire feast’ at the posh Suffolk reserve, where prices start from £1,299 a night for a three-bedroom holiday home

Luxury on the farm! The mother-of-one was also greeted by a Jeep packed to the brim with luxury essentials like fluffy white robes and iced drinks.