Nancy Grace ... IS A FRICKIN' DANCE MACHINE!!!!!!!
The "Dancing with the Stars" contestant just hit the TMZ newsroom with her partner Tristan MacManus ... and gave us a little preview of what's to come on the show ... AND IT WAS PRETTY DAMN GOOD!!!
RUMPSHAKIN' in the TMZ Ballroom!!
9/16/2011 3:30 PM PDT BY TMZ STAFF
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