Chris Brown -- I DRANK, But I Won't Drive!

Chris Brown pulled a Kiefer Sutherland last night -- in a good way -- hooking himself up with a designated driver after a night of boozing in L.A.

Brown was leaving Roxbury nightclub in Hollywood when we brought up his kick-ass Lamborghini -- and he replied, "Thanks man ... I'm not driving it tonight, I had some drinks. I'm doing it responsibly."

Breezy wasn't kidding around -- dude got into the back of a waiting ride and was whisked away without incident.