Nick Jonas makes climbing the corporate ladder look simple in How to Succeed in Business Without Really Trying, but as a diabetic, starring on Broadway is especially challenging. On February 15, the pop superstar stopped by CNN’s Starting Point with Soledad O’Brien to talk about the effect the illness has had on his performance as J. Pierrepont Finch, and how he finds the motivation to deliver a knockout performance each night. Jonas, who was diagnosed with type 1 diabetes at age 14, describes his condition as “unpredictable,” and sometimes feels dizzy or thirsty if his blood sugar is unstable. Click below to hear Jonas chat about living with diabetes, then see him overcome the obstacle onstage at the Al Hirschfeld Theatre.