Sia Koskina born in Thessaloniki . He began ballet lessons at a young age to dance school ' Roula Kafantari . " He did three years of study in London , winning a scholarship to the Academy of Performing Arts Urdang Academy of Performing Arts in West End, with the upper classes in dance, singing and acting. He graduated with a degree specialization Musical Theatre Performer.
He also received a degree in Ballet Royal Academy of London "Royal Academy of Dancing". He attended guitar lessons with Panagiotis Margari in Erateio Conservatory , masterclass acting with Bernard Hiller and seminars with musical Award winning Tony Gillian Gregory and assistant choreographer to Bob Fosse, John Sharp. He attended the annual seminar Jacob` s Pillow-Broadway in Athens 2010 " with choreographer Chet Walker and Professor voice Ric Rider, and was awarded the scholarship Jacob `s Pillow Scholarship Award, taking lessons from major teachers Broadway: Chet Walker, Danna Moore, Bill Hastings, in Massachusetts , USA