Girls Aloud's Kimberley Walsh and Nicola Roberts slip into tight gym gear as they work up a sweat with a personal trainer in a London park

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They became friends?17 years ago in 2002 when they were plucked from obscurity on Popstars: The 競争相手s and propelled to fame in Girls Aloud

And Kimberley Walsh and Nicola Roberts 証明するd they're still as の近くに as their girl 禁止（する）d days as they worked up a sweat with a personal trainer in a north London park on Thursday.?

Kimberley, 37, and Nicola, 33, slipped into tight gym gear as they were put through their paces during the gruelling outdoor workout.???

Squat!?Kimberley Walsh and Nicola Roberts 証明するd they're still as の近くに as their girl 禁止（する）d days as they worked up a sweat with a personal trainer in a north London park on Thursday

Kimberley flaunted her トンd 人物／姿／数字 in a sports luxe look, 選ぶing for 黒人／ボイコット leggings and a neon orange 最高の，を越す, worn under a baggy grey vest.

The mother-of-two wore her blonde locks in a stylish （頭が）ひょいと動く, while こどもing a ヒョウ print 捕らえる、獲得する after the energetic workout.

Nicola sported Adidas jogging 底（に届く）s which hugged her lithe 脚s, which she teamed with a 黒人／ボイコット スローガン sweatshirt.?

The redhead wore her long locks in a low ponytail tied with a scrunchie, finishing the look with a white baseball cap.

Workout time:?Kimberley, 37, and Nicola, 33, slipped into tight gym gear as they were put through their paces during the gruelling outdoor workout

演習:?Kimberley flaunted her トンd 人物／姿／数字 in a sports luxe look, 選ぶing for 黒人／ボイコット leggings and a neon orange 最高の，を越す, worn under a baggy grey vest

Gruelling:?The mother-of-two wore her blonde locks in a stylish （頭が）ひょいと動く and went make-up 解放する／自由な during the energetic workout

It's crunch time:?Nicola sported Adidas jogging 底（に届く）s which hugged her lithe 脚s which she teamed with a 黒人／ボイコット スローガン sweatshirt

Kimberley and Nicola went make-up 解放する／自由な for their 演習 stint, while 保護物，者ing their 注目する，もくろむs form the sun with large shades.

The pop princesses were spotted doing squats, crunches and 押し進める-ups as they worked up a sweat.?

The 二人組 met 17 years ago in 2002 on Popstars: The 競争相手s and went on to have an incredible career in successful girlband Girls Aloud, と一緒に の近くに friend Cheryl and fellow bandmates Sarah Harding and Nadine Coyle.?

Kimberley 明らかにする／漏らすd she, Nicola and Cheryl still hang out and their 'incredible friendship' is in a whole new '段階 of life', 特に now she and Cheryl have children.?

Working hard:?The redhead wore her sleek long locks in a low ponytail tied with a scrunchie, finishing the look with a white baseball cap

Sweating up a 嵐／襲撃する: Kimberley こどもd a ヒョウ print 捕らえる、獲得する after the energetic workout as she checked her phone?

トンd physique: Kimberley was spotted working on her 人物／姿／数字 while 成し遂げるing a number of difficult workouts?

Fantastic 人物／姿／数字s:?Kimberley and Nicola went 構成 解放する／自由な for their 演習 stint while 保護物，者ing their 注目する，もくろむs form the sun with large shades

The mother-of-two said: 'I think it's 肉親，親類d of incredible really it's been such a long time since the beginning of Girls Aloud, what, 17 years or so? Now we're in a whole new 段階 of our lives.'

Kimberley went on to 追加する that she has 合併するd all her friends in the 'mummy zone' and that they all get together for special events.

She 追加するd: 'As I am with all my friends that I've grown up with, we're all in that mummy zone.?

'We all 肉親，親類d of 合併する together, all of my friends know each other, we all get together for the kids' birthdays and stuff. It's just a new 段階 of life, it's lovely to do it together.'

Pumping アイロンをかける: The pair looked stylish in their sports luxe look while 存在 coached by a personal trainer

Best foot 今後: The pop sensations 証明するd working together is the answer as they 演習d in the park

Talking about whether having kids has 深くするd her friendship with Cheryl and Nicola, she continued: 'I think k ids do that anyway, they put you on a different emotional level, I think it's just nice that all mums have an understanding.?

'It's when you become a mum, you become part of a club, you understand what that means… it does take it to another level I guess.'

Kimberley also joked that the reality of her 会合，会うs up, 特に with Nicola, result in her 存在 on 'childcare 義務s' as she 株d a funny story from one of their 最近の get togethers.

She said: 'It's lovely catching up, Nicola （機の）カム over for a little spa date, we had a facial 治療 at 地雷, but I'm not sure it was やめる as relaxing as she was hoping for. The reality was she was on childcare 義務s while I had my facial.?

Plank: Kimberley did her best to 燃やす the calories and work on her 核心?

Here we go: The pair donned rubber 抵抗 禁止（する）d as they got to work in the park?

'I could hear what was going on with my 注目する，もくろむs の近くにd and Bobby was making her do 飛行機で行くing in the 空気／公表する, jumping on her 支援する like Superman, making her run around, playing guns and all sorts... so I'm not sure it was the most relaxing spa date she has ever had.

'But my boys enjoyed it, they were really happy to see her. She was exhausted, yeah, she was like, "I finally got them to bed!" then we could 冷気／寒がらせる and have dinner.?

'She was like: "Oh my God, I'm exhausted!" and I was like, "Yep, welcome to my world!"'

Kimberley has been married to her long-称する，呼ぶ／期間／用語 partner, Justin Scott, since 2016; the couple tied the knot in Barbados with Cheryl and Nicola as bridesmaids.?

Flaunting physique: Kimberley looked chic and stylish にもかかわらず her workout

Working together: The pair met 17 years ago in 2002 when they were both plucked from obscurity on Popstars: The 競争相手s and propelled to fame in Girls Aloud?