Keibler, who has been dating the A-lister for more than a year now, looked refined -- perhaps even sedate -- in a black Armani Prive gown and slick, straight hair.
It was a big night for Clooney. "Argo," which Clooney co-produced, won best dramatic film.
It was perhaps an even bigger weekend for Keibler, whose beloved Ravens beat the Broncos Saturday, earning a spot in the championship game against New England.
"I'm just so happy. SO happy! Congrats to my boy rayrice27 and all of the #Baltimore @ravens," the former Ravens cheerleader Tweeted Saturday.
Last week news broke that Keibler is also working with her man.
The couple stars together in a little film to promote Clooney's Casamigos brand of tequila. Their buddies Cindy Crawford and Rande Gerber are also in the short film.
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