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![As the summer heat has celebs ready to bare their midriffs, we go navel-gazing and spot the rival belly button tribes | The Sun As the summer heat has celebs ready to bare their midriffs, we go navel-gazing and spot the rival belly button tribes | The Sun](https://www.thesun.co.uk/wp-content/uploads/2016/08/nintchdbpict000257687395.jpg)