Ibiza has once again become the epicenter of international celebrity thanks to Desigual's 40th anniversary celebration, which brought together Ester Expósito, Irina Shayk, Demi Lovato, Zara Larsson, Baya Gorbunova, Vivian Jenna Wilson (Elon Musk's daughter), and a strong Spanish contingent including María Pombo, Violeta Mangriñán, and María Fernández-Rubíes. All under the direction of Tomas Meyer, the brand's founder, who took the opportunity to…