Sia Koskina is a Greek singer and was born in Thessaloniki. She began ballet lessons at an early age at the "Roula Kafantari's" dance school. She did three years of study in London, awarded a fellowship at the West End's Urdang Academy of Performing Arts, with lessons in dance, singing and acting. He graduated with a degree in Musical Theater Performer. She also received a degree from the Royal Academy of Dancing in London's Royal Academy of Ballet. He attended guitar lessons with Panagiotis Margaris at the Eratio Conservatoire, masterclass in acting with Bernard Hiller, and musicals with Tony Award-winning Gillian Gregory and Bob Fosse's assistant choreographer John Sharp. She attended the annual Jacob's Pillow-Broadway in Athens 2010 seminar with Chet Walker and vocal professor Ric Rider, and was awarded the Jacob's Pillow Scholarship Award, taking lessons from major Broadway teachers: Chet Walker, Danna Moore, Bill Hastings, Massachusetts, USA She also traveled to Los Angeles, where she worked with Derick LaSalla and Ron Colvart, followed by their band on a series of "Best of Broadway" performances and a concert in Cyprus, next to young American performers, "Broadway in Concert".