We loved the Bee Gees, then we hated them, then we loved them again...
My favorite band from that time is ABBA, if only because they totally rocked these cat dresses, which would have made a killing on etsy if the internet existed back then.
I mean even if love art and artists from thousands of years ago, their celebrity did fade away. But we can still enjoy their best works, same with contemporary artists who produce good shit for a while and then decline (or revert back) into mediocrity.