The Pop star got preppy at the Royal polo match held in Santa Barbara. It was the last stop of William and Kate's tour and a successful one at that with William scoring 4 goals! Jonas hungout with model Karlie Kloss as well as Alex Pettyfer ( I Am Number Four). There was also a photo booth where Jonas and Kloss joked around and took some pics before the event. The charity event benefitted the American Friends of the Foundation of Prince William and Prince Harry.
**Check out more pics from the event after the jump!