Born in Winnipeg, Manitoba, violinist Lucas Ju began studying violin at the age of 5. Lucas is in Grade 10 and is currently enrolled in the Arts Unionville Program of the Unionville High School. Lucas was Concertmaster of the Toronto Symphony Youth Orchestra for the 2024-2025 season where he was the youngest concertmaster of the orchestra. Lucas has continued to serve as Concertmaster and Principal 2nd Violin of the Tsyo throughout the 2025-2026 season. Lucas is also the Concertmaster of the Canada Youth Chamber Orchestra, where he has been a dedicated member for 5 seasons.

An avid chamber musician, Lucas is the 1st violinist of the Leidenschaft Piano Quintet and as a 1st violinist of the Amour String Quartet, Lucas has won 1st Prize of the OMFA Junior Chamber Music Category Provincial Finals in 2023, following 2nd place in the OMFA Senior Chamber Music Category in June of 2025. Lucas has performed in Germany at the Wolfgang Sawallisch Stiftung with the Leidenschaft Piano Quintet.

Lucas won the 2026 Korean Canadian Symphony Orchestra Concerto Competition and was the Runner Up of the 2026 Guelph Symphony Orchestra Concerto Competition. Lucas was the National Finalist of the 2026 Canadian Music Competition and won the 3rd Prize of the Open/ARCT Category of the OMFA Provincial Finals and has won the Young Artist Contract Award of the OYMI Music Festival and has won numerous prizes and scholarship awards in the local and provincial competitions.

As a soloist, Lucas has performed as a soloist with the Korean Canadian Symphony Orchestra, Toronto Concert Orchestra, Canada Youth Chamber Orchestra, Chinese Artists Society of Toronto Orchestra and the Young Artists Concert Orchestra. Lucas is looking forward to making his solo debut with the Guelph Symphony Orchestra, where he will be performing Mozart’s Sinfonia Concertante in E flat Major for violin and viola, alongside his teacher, Samuel Choi in January of 2027. Lucas is currently a student of Samuel Choi.