The cast of "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 11:11 PM

Vinny Foti ("Challenge 19: Fresh Meat II") and Sarah Rice ("Real World 21: Brooklyn") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Robin Hibbard ("Real World 14: San Diego") and Mark Long ("Road Rules 1") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Jasmine Reynaud ("Real World 22: Cancun") and Tyrie Brown ("Real World 18: Denver") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Wes Bergman ("Real World 16: Austin") and Mandi Moyer ("Challenge 19: Fresh Meat II") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Dunbar Flinn Merrill ("Real World 19: Sydney") and Paula Meronek ("Real World 17: Key West") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Camila Nakagawa ("Challenge: Spring Break 2010") and Johnny Devenanzio ("Real World 17: Key West") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Leroy Garrett ("Real World 25: Las Vegas") and Naomi Defensor ("Real World 25: Las Vegas") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Nate Stodghill ("Real World 26: San Diego") and Priscilla Mendez ("Real World 26: San Diego") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Heather Marter ("Real World 25: Las Vegas") and Dustin Zito ("Real World 25: Las Vegas") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM

Rachel Robinson ("Road Rules 11: Campus Crawl") and Aneesa Ferrera ("Real World 11: Chicago") compete in "The Challenge: Battle of the Exes."MTV - Wednesday, January, 11, 2012, 10:11 PM