Issa's designs have been seen on celebrities such as Naomi Campbell, Madonna, Jennifer Lopez, and Scarlett Johansson, as well as William's cousins, Princesses Beatrice and Eugenie of York.[7][8] Middleton's sister Pippa has also been seen in Issa's clothing, including Kate's engagement dress design in a red colour, which she wore to an event in 2007.[9]