"Sit at home and watch telly? Gardening, golf... no thanks. Occasionally, I do think, 'You should have got fed up by now, you should be jaded'. But then I still enjoy writing, I still enjoy singing. What am I gonna do? You see so many people who retire and then immediately expire." Sir Paul McCartney, who released his most recent album in 2013 and is still touring, won't be retiring anytime soon.