Primark's latest little black dress has sent shoppers into a spin, with fans dubbing it 'flattering', 'perfect', and some even declaring it the 'best thing on sale right now'. The frock causing a stir is Primark's Corset Tie-Back Mini Dress from Rita Ora's newest line . Shoppers can pick up the corseted mini dress that boasts an attractive square neckline and a charming bow-back detail for just £20. However, many say the dress looks far more expensive than it really is. This dress, starting at