10/21/2010 05:12 am ET Updated May 25, 2011

Teresa & Danielle's Showdown At 'Real Housewives' Reunion

There's going to be a Real Housewives of New Jersey showdown!

When the feuding stars got together for the upcoming reunion, things got heated right away between Danielle Staub and Teresa Giudice, a source tells PEOPLE.

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