Warren Oja is an active performer and instructor in Chicago. He currently teaches cello at Chicago's Northside Music Academy. In 2021 Oja made an appearance on season 16 of NBC’s America’s Got Talent, where he performed a solo act for the celebrity judges. Oja is internationally known through his social media platforms which have over 40,000 followers combined. Warren's content has reached millions through world famous social media platforms such as Classic FM. Oja's performances have brought him alongside noteworthy artists such as Leonard Slatkin, Astrid Schween, Fred Hersch, Lori Sims, Mayumi Kanagawa, and Brannon Cho