Trojak ("threesome", "trio", in Polish) is a Silesian folk dance. It is a double partner
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Heidi Groskreutz is a ballroom dancer, specializing in the fields of Latin and swing dancing. She is known for making the final of the Fox TV series So You Think You Can Dance.
She participated in so you think you can dance season II ,she was one of the top 20 contestants.
Heidi Groskreutz was eliminated in week-9. That week she performed "Caribbean Blue"—Enya, style was Viennese waltz with Ryan Rankine