Keith Richards has been celebrating his 80th birthday and Christmas on safari in South Africa. The Rolling Stones’ former hellraising guitarist took the trip with his wife Patti Hansen, who he married in 1983, to mark becoming an octogenarian on 18 December. He posted alongside an image of himself grinning while wearing a jacket in the colours of the South African flag: “Thank you for your birthday wishes! Merry Christmas from South Africa.” Keith’s trip came weeks after it was reported he was planning on jetting off to see wildlife on a safari trip to mark turning 80. A source told The Sun: “…