Ariana Grande rehearsed before her performance on The TODAY Show last week wearing an Rita Ora for Adidas Originals Bomber Jacket (£425.00), a Pop Plastique by Rio Warner Vinyl Pleated Skirt ($90.00) with a matching custom bralet and a customized pair of her favourite Saint Laurent Janis Pumps ($795.00, Cream) in White. You can get similar pumps from Amazon ($36.00+).