Clooney was joined by wife Amal, as well as pals and partners in the Casamigos tequila company Mike Meldman and Rande Gerber, along with wife Cindy Crawford. They arrived on Saturday, flying in a private jet from the Clooneys' house in Lake Como (Italy).
The group of friends are staying at a luxury 12-bedroom villa. They dined at high-end Es Torrent restaurant on Saturday, a beautiful waterfront spot in a secluded cala in the southern coast of Ibiza.
The event took place on Sunday evening at the exclusive UP! Ibiza Sky Society, Ushuaia Ibiza Beach Hotel's sky lounge in Playa d'En Bossa, where they watched the sunset with Casamigos tequila cocktails and then partied the night away. The impressive guest list included well-known names such as James Blunt, Paris Hilton, Mario Testino, Paloma Faith or Elizabeth Jagger.