Britney Spears has been enjoying the benefits of swimming - showing off her impressive skills underwater on social media.
The pregnant star - who announced she was expecting her third child on Monday - took to Instagram on Wednesday to share a clip of herself going "really deep" underwater as she took a dip in a pool.
The mum-of-two gushed about the benefits of the water-based activity to her 40.6million followers on the social media platform - explaining she has heard it's "the best exercise for babies".
