Piers Morgan has branded Demi Lovato 'stupendously dumb' after the pop singer criticised a frozen yogurt store for offering customers sugar-free cookies and diet foods.
The 56-year-old former Good Morning Britain star, who said he had often been a customer at the LA-based yogurt store, jumped to their defence following the social media exchange.
It came after Demi took to Twitter over the weekend and demanded that the store 'do better' to support those that are struggling with eating disorders.
She also said that she would start calling out companies that were using 'harmful messaging' and encourages 'disordered eating'.
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