By Paige Feigenbaum
3:05 PM PST, November 12, 2012
In addition to each couple's solo dances tonight, the latest challenge posed to the cast of ABC's Dancing With the Stars: All-Stars is a trio routine. An extra pro will join each pair. Check out these goofy photos of the threesomes in rehearsal, starting with this one of Gilles Marini, Peta Mergatroyd, and Chelsie Hightower planking.
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Pics: 'DWTS' Trios Get Silly in Rehearsal

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In addition to each couple's solo dances tonight, the latest challenge posed to the cast of ABC's Dancing With the Stars: All-Stars is a trio routine. An extra pro will join each pair. Check out these goofy photos of the threesomes in rehearsal, starting with this one of Gilles Marini, Peta Mergatroyd, and Chelsie Hightower planking.
Kelly Monaco, Louis Van Amstel, and Val Chmerkovskiy

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Karina Smirnoff, Apolo Anton Ohno, and Sasha Farber

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Emmitt Smith, Kym Johnson, and Cheryl Burke

Instagram
Shawn Johnson, Derek Hough, and Mark Ballas

Twitter
Kirstie Alley, Maksim Chmerkovskiy, and Tristan MacManus

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Melissa Rycroft, Tony Dovolani, and Henry Byalikov

Twitter