A tricky one.
Some artists come up with some fantastic music late in their career. Johnny Cash springs to mind. Also Sophie Ellis-Bextor's album last year was a new and very good direction for her. My favourite album of last year. Quo going acoustic is great.
But then there are some who are just there because they are who they are. Madonna probably would be in that group for me but then her set on the superbowl a couple of years ago was great. David Bowie and Paul McCartney definitely should give it a rest.
But then I looked at getting tickets to see Texas and went to see Manfred Mann a few months ago.
I try and see Ian Anderson at least once a year, and have done so since 1989. So long as he keeps writing and performing, I'll keep going.
As for Madonna, she's not my cup of dried leaves in boiling water but if folk want to pay to go see her then fair enough. But Madonna, please, for the love of God, Grant me one little wish - KEEP YOUR CLOTHES ON!!!