Diabetic Nick Jonas had a minor scare when performing live with the Jonas Brothers on Saturday – His insulin levels dropped resulting in a short interval halfway through the set.

Nick and his bandmate brothers Joe and Kevin are even wired up with microphones so they can chat with each other during gigs - allowing the 15-year-old to tip them off when his insulin levels drop and he starts feeling weak.

Since being diagnosed with Type 1 diabetes in 2005, Nick has had to monitor his blood sugar levels regularly intervals, and stop for treatment if they fall too low - even if it's in the middle of a concert.

And his brothers have a special technique to distract fans while Nick dashes off for an insulin shot.

Joe had to call on Plan B at a Saratoga Springs concert at the weekend, when his brother needed medical assistance.

He explains: "I chatted with the audience and kept reading all the signs people were holding up."

Nick adds: "I was only bad for, like, a minute, but Joe kept talking and talking for, like, five minutes."

The onstage scare was another reminder of just how difficult life can be for the young Jonas sibling. His father Kevin Jonas Snr revealed how bad his affliction can sometimes be.