Nick Jonas is a Virgo native with a secret. Though he's known as part of the multi-platinum Jonas Brothers, not to mention his famous ex-girlfriends (Miley, Selena, Gigi, Kate, Olivia...), he was diagnosed with Type 1 diabetes at 13 and uses an insulin pump to ensure that his blood sugar remains balanced.
Since then, he's stayed healthy, and helped use his celebrity to launch Change for the Children Foundation, to support programs that "motivate and inspire children to face adversity with confidence, determination and a will to succeed."
It's no secret anymore than Jonas is using his Virgo ingenuity and desire to serve to help others stay happy and healthy... while chiseling his own body to perfection!