Prince Harry beamed on stage at a concert, just days after receiving messages from King Charles and Prince William. The Duke of Sussex spent Friday night in Carpinteria, California, helping raise funds for Santa Barbara County First Responders. The royal took the stage at the star-filled One805LIVE! concert, hosted by Kevin Costner. The concert helps raise funds for the local fire, police, and sheriff departments, with proceeds going towards equipment and mental health resources. The Duke of Sussex took the stage in front of hundreds of concertgoers with the night’s honouree,Santa Barbara Coun…