Cancer was given as the cause of death for all three, all of whom were around the same age. Yet again we are reminded that cancer doesn't discriminate between rich and poor, famous or anonymous.
Fortunately all three men shared their unique talents with the world and their legacies will live on forever through their music and films.
Some people have expressed cynicism about the outpourings of public grief, particularly with the passing of David Bowie, but please don't judge too harshly, as grief is extremely personal.
Whilst I appreciate that in most cases we didn't actually know these people, they have all impacted on our lives in one way or another. In some respects, we do feel like we know them, particularly if we relate to their song lyrics, and they have helped us through troubled times.
I was late to discovering David Bowie's music - Let's Dance and Absolute Beginners were where I joined, later on hearing his 70s classics and realising the impact he had on modern musical culture.
But what I have come to appreciate latterly is the fact that he made people who felt like outsiders feel that they weren't alone - and the benefits of this should not be underestimated.
With regards to Alan Rickman, 'Die Hard' is the first film I remember of his - I wish I could say it was 'Truly, Madly, Deeply', but I've always been more of an action movie person.
His portrayal of Hans Gruber was so good at being bad that it set the standard, and subsequent US action films simply had to have a British actor playing the villain.
To the younger generations though, my daughter's included, he will forever be Professor Severus Snape from the Harry Potter films, the ultimate bad-guy (who actually turns out to be good).
Life on Earth may be duller with the passing of these three talents, but Heaven has become a lot more interesting.