Which prompts the thought...
Randy Newman (who is indisputably the greatest living American song writer) recently said that he thought his current/recent work was as good as anything he has ever written. Possibly, but if true it is because he is not a writer trying to capture the zeitgeist whereas, and I say it now, Adele will be forgotten in a decade just as Elton John, George Michael, Jagger-Richards, McCartney,...all of them... are just turning out dross.