'Happy Birthday Your Majesty! King Marks His 75th By Launching New Food Project'. The King has marked his 75th birthday by launching an initiative to support charities feeding the nation with unwanted food - and surprised a Big Issue seller with a generous donation During the visit to the distribution hub in Oxfordshire, the King was serenaded by volunteers and workers with a rendition of 'Happy Birthday'. #kingcharles #royalfamily #royalnews #queencamilla