As if they need more money!

George Clooney and Rande Gerber, along with their partner Michael Meldman, just sold their Casamigos tequila for a whopping $1 billion to Diageo PLC, a British distiller of spirits.

Clooney and Gerber launched the brand just four years ago, and the idea was more of a passion project than a business venture.

"Casamigos really started by accident as far as a company. As you do in Mexico, we would drink a lot of tequila. We'd go out to bars and restaurants, and bartenders would recommend them. Some were good, some not so good, and some expensive. There came a point where George turned to me and said, 'Why don't we create one that's perfect for us?'" Gerber told Business Insider this past March.

The actor and Cindy Crawford's husband will still be involved with Casamigos, though.

"This reflects Diageo’s belief in our company and our belief in Diageo. But we’re not going anywhere. We’ll still be very much a part of Casamigos. Starting with a shot tonight. Maybe two," Clooney said in a statement to Deadline.

Casamigos sold 120,000 cases of tequila in 2016, and the brand is on track to reach over 170,000 cases by the end of this year.

Clooney's newborn twins Ella and Alexander just got a whole lot richer!