Why was there such an outpouring of grief over celebrity deaths in 2016?

For many people 2016 stood out as a year when many much loved celebrities passed away. Musicians like David Bowie, Leonard Cohen, George Michael and Prince sadly died, as well as other famous faces like Ronnie Corbett, Muhammed Ali, Terry Wogan and many more. But is the outpouring of grief over the many well known stars when they have died somewhat misplaced? Or perhaps even though we don't know them personally, and whether or not they were seen as good role models, they have been a part of our lives and that grief from fans can be understood? Writing in the Belfast Telegraph, journalist Malachi O'Doherty has taken the Bishop of Derry Donal McKeown to task for a homily he gave on World Peace Day. Bishop McKeown contrasted the lost musicians of 2016 with Mother Theresa and her record of 'caring for the needy and unfamous' was a more appropriate person.