Joo Yeon Sir (born June 29, 1990, in Seoul), is a South Korean-born British violinist and composer. Educated at the Purcell School and at the Royal College of Music, London where she studied with Dr. Felix Andrievsky as a scholar, Joo Yeon Sir has been a major prizewinner at national and international competitions in the UK and abroad and has performed as recitalist, chamber musician, and soloist with orchestras at various venues including the Royal Albert Hall, Royal Festival Hall, Wales Millennium Centre, Barbican Hall, Wigmore Hall, Liverpool Symphony Hall, , Fairfield Halls, the Foundling Museum, and St James's Palace in the presence of Prince Charles. She has appeared as soloist with the Royal Philharmonic, Philharmonia, and Bournemouth Symphony orchestras as well as with her regular