VIDEO: How Well Do Dancing's Derek Hough and Nastia Liukin Know Each Other?

Nastia Liukin and Derek Hough have been Dancing with the Stars partners for two months, which is plenty of time to get to know one another... or at least fire up Google. (Hey, it wouldn't be the first time.)

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We dropped by the pair's tango rehearsal last week to put to them

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• Dancing with the Stars
• Derek Hough
• Nastia Liukin

Source TVGuide.com: Breaking News http://ift.tt/1Gmq4tN