Video! Nick Jonas Celebrates 21st Birthday in Las Vegas
It was a family affair for the Jonas Brothers as they headed to the Wynn Las Vegas to celebrate the little brother Nick's 21st birthday.
A group of Nick's closest friends and family, including girlfriend and Miss Universe Olivia Culpo, were at Botero steakhouse at Encore for a birthday dinner. Afterward, the group headed to a huge bash at XS nightclub.