The Giga dance is formal of ballet style. The French giga was a energetic dance
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Soost was born in East Berlin and grew up in an orphanage. His mother, who died very early, was a German, his father came to the GDR from Ghana. The biography on his homepage states that Soost became streetdance champion of East Berlin when he was 15 years old and champion of the GDR when he was 16, but some people criticize, that, based on his date of birth given in the same biography (1971) this seems very unrealistic, because streetdance was not accepted in the GDR and no "official" battles could be held in which Soost could win a title.