05/02/2012 07:49 am ET | Updated May 02, 2012

'Real Housewives Of Orange County': Gretchen And The Pussycat Dolls, Vicki's Daughter Drops A Bombshell (VIDEO)

The action-packed trip to Las Vegas continued on "The Real Housewives Of Orange County" (Tue., 9 p.m. ET on Bravo) Tuesday night.

The ladies were finally treated to Gretchen Rossi's much-vaunted debut performance with The Pussycat Dolls. Gretchen looked fabulous, but her singing was ... not so hot.

Later, Vicki Gunvalson was enjoying a quiet family dinner when her daughter Brianna dropped the bombshell that she and her boyfriend Ryan had gotten hitched in a Vegas wedding chapel. (At a drive-through window, no less.)

"Take a drink!" Brianna joked nervously as Vicki say stony-faced. "I feel like I have failed as a mother," she intoned.

If Vicki was fretting over the lack of a suitably O.T.T. reality TV wedding for the happy couple, she needn't have worried. Radar Online exclusively reports that Vicki’s gotten over her initial shock and is now helping Briana plan a more elaborate wedding.

The drama continues on "The Real Housewives of Orange County," Tuesdays at 9 p.m. ET on Bravo.

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