Katie Waissel flashes her washboard abs in a green top crop and gym leggings

She previously revealed she had lost a huge two stone and dropped an impressive three dress sizes in just seven months, after giving birth to son Hudson.

And Katie Waissel showcased the results of her incredible weight loss journey in skintight lycra as she went for a morning run in North London on Friday.

The former X Factor star, 34, flashed her taut abs in a tiny green crop top with a pair of matching gym leggings as she jogged through the park. 

Wow! Katie Waissel showcased the results of her incredible weight loss journey in skintight lycra as she went for a morning run in North London on Friday

Katie didn’t forget to stop to stretch out her muscles during her work out and could be seen stopping and pulling her leg behind her.

The singer wore her brunette locks in a loose style and kept her casual attire slightly glam by adding soft touches of make-up to her pretty features.

She completed her work out attire with a pair of black trainers. 

Work it: The former X Factor star, 34, flashed her taut abs in a tiny green crop top with a pair of matching gym leggings as she jogged through the park

Work it: The former X Factor star, 34, flashed her taut abs in a tiny green crop top with a pair of matching gym leggings as she jogged through the park

In December, Katie shared incredible before and after snaps to Instagram, while telling fans she now feels like she is the ‘best version of herself’.

In a reflective post, Katie looked back on how far she has come in the last year after starting 2019 feeling ‘completely inadequate, helpless and alone’. 

In her before and after pictures, the former X Factor star looked dramatically different, with the snaps highlighting the phenomenal change in her body over recent months. 

Looking incredibly gym-honed, Katie flexed the muscles in her back and showcased her taut stomach while posing topless in her old maternity underwear. 

Gym chic: The singer wore her brunette locks in a loose style and kept her casual attire slightly glam by adding soft touches of make-up to her pretty features

Gym chic: The singer wore her brunette locks in a loose style and kept her casual attire slightly glam by adding soft touches of make-up to her pretty features

Sharing a lengthy caption alongside her upload, Katie said: ‘Kiss My Ass 2019 – As the New Year fast approaches, and I’m slowly beginning to jot down my 2020 goals, I can’t help but take a look back on the roller coaster year that I have just battled through. 

‘Not only did I begin this last year with a huge international move with my then four month old baby and dog, I spent my first ever Christmas as a new mum, which should have been incredibly exciting, overshadowed by the fact that I was a single mother and completely lost, and afraid of what that year ahead had in store.’ 

Addressing the difficult time she faced at first, Katie continued: ‘Devastated and wanting so badly to hide in a cave feeling completely inadequate, helpless and alone, I battled through the crisis and utter heartbreak that I had endured, so that my darling little one could look back on his first ever Christmas with nothing but sweet memories and that I can surely say he can!’

Feeling more optimistic about the future, Katie added: ‘This year, what I am most excited about, is that we can celebrate all that we have achieved both individually and together. Hudson is almost 18 months old, walking, talking and a total rock star, me, well I’ve finally found my own identity, self worth and strength both inner and outer. 

‘So as I post this photo, of me still wearing my maternity underwear, hair thrown up in its righteous ‘mum bun’ I’m proud to say I’ve literally worked my ass off to become the best version of myself for what is set to be the best year ahead yet!  

‘There are still a few days left in this year, and as I always say, never stop until we cross that finish line, better yet push yourself that little bit more! Have faith in yourself wherever you are in your journey!’

Wow! In December, Katie shared incredible before and after snaps to Instagram, while telling fans she now feels like she is the 'best version of herself'

Wow! In December, Katie shared incredible before and after snaps to Instagram, while telling fans she now feels like she is the ‘best version of herself’

wShe concluded: ‘Believe that sometimes we break just to grow bigger and better and stronger! I’m proud of each and every one of you, you’ve got this! Be empowered and feel inspired.’

Katie welcomed her son Hudson in July 2018 as a single mum, after splitting with boyfriend Andy Speer when she was eight months pregnant. 

She then embarked on an intense 10-month long fitness overhaul that saw her lose two stone and drop three dress sizes. 

Honest: . In a reflective post, Katie looked back on how far she has come in the last year after starting 2019 feeling 'completely inadequate, helpless and alone'

Honest: . In a reflective post, Katie looked back on how far she has come in the last year after starting 2019 feeling ‘completely inadequate, helpless and alone’