Despite your feelings for him and his music quizzy, it is a newsworthy item. Bowie and his music has an iconic status in the British music scene, with a large and fairly devoted following.
His release of a new album after years of silence, in combination with a new show is,culturally speaking, a newsworthy event.
I was never a massive fan - I liked some of his stuff but not all, and I doubt I will be going to the show, but I did find it an interesting story, especially since his single has shot to number 1 ( although I understand that is a lot easier than it used to be, but still....)