Jacob is the youngest of three children born to Barb Gelb and Robb Zelonky. He has always loved theater and performed on several community and professional stages in Memphis before being invited to NYC at the age of 11 to audition for the national tour of Billy Elliot. On the tour of Billy Elliot he played the role of Michael, for which he learned how to tap dance. He performed 270 shows over two years. He is a huge Harry Potter fan and an avid reader.