© @Copyright HELLO! Hello! Magazine Katy Perry has joined the likes of Victoria Beckham and Scarlett Johansson by incorporating one very specific drink into her daily diet – apple cider vinegar. MORE: Katy Perry displays post-baby figure in eye-catching swimsuitThe American Idol judge, who welcomed daughter Daisy Dove last August with fiancé Orlando Bloom, shared a photo of herself holding a bottle of lime citrus flavoured prebiotic drink from Bragg.