A four-year-old violinist who has become something of a YouTube sensation is taking to the stage with a local symphony orchestra this weekend, reports the Arizona Republic. A video of Jonathan Okseniuk conducting along to a recording of Beethoven’s Fifth Symphony when he was just three years old has been viewed nearly 1.7m times on YouTube. Following his performance of Dvo?ák’s Humoresque with the Chandler Symphony Orchestra on Sunday, Jonathan, who is taking lessons from the orchestra’s concertmaster, will get to conduct the ensemble during a youth-themed concert in March.