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So You Think You Can Dance pictures provided by FOX.
Mary Murphy serves as a national dance judge, technical dance teacher, competitive dancer and founder of the Champion Ballroom Academy in San Diego, CA. Murphy and her partner were the Austrian National Champions in 1990 and '91 and performed together in the World Cup Final. She has coached Mary Steenburgen, Donnie Wahlberg, Julia Roberts, Dennis Quaid, Lorenzo Lamas and Ted Danson for various roles. She continues to train champion dancers in her studio and co-organizes two national dance competitions: the San Diego Dancesport Championships and the Holiday Dance Classic in Las Vegas.