George Clooney gal Stacy Kiebler gets down in Sin City

After hitting up numerous awards-show red carpets with nominated boyfriend George Clooney as of late, Stacy Keibler kept things casual this past weekend in Sin City, flying solo for a few days' worth of Super Bowl madness.

The "Dancing With the Stars" alum hosted a pre-Super Bowl bash at the Bank Nightclub at the Bellagio on Saturday night, where she partied with a bevy of gal pals "into the early hours of Sunday morning," a spy told amNewYork.

Keibler, a former Baltimore Ravens cheerleader, planned to watch Sunday's big game in Vegas.

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