George Clooney and Amal Alamuddin hosted an engagement party over the weekend.

The 54-year-old star, who popped the question to the British lawyer last month, were joined by family and friends at Malibu, California's Café Habana to wish them well on their upcoming nuptials on Sunday (11.05.14).

The A-list stars who attended include U2 frontman Bono and supermodel Cindy Crawford.

The venue is owned by Cindy's husband, Rande Gerber, and George and Amal were happy to share the restaurant with fellow patrons looking to enjoy a meal to celebrate Mother's Day in the US, rather than close the establishment for a private function.

A source told E! News: ''People got a show they didn't expect and other [restaurant patrons] said it was the best Mother's Day ever.''

It was recently reported that George, 53, wooed his British fiancée in a series of steamy emails after they met last September.

He's alleged to have written in one email: ''I think the reported hottest man in the world should meet with the hottest human rights lawyer in the world.''