Elton John and Brandi Carlile join forces for what will be, respectively, their 33rd and eighth albums. Which songs rank among the best, and worst?

A good year and a half ago, Elton John, 78, gave the last concert of his farewell tour. But even then, he said it would not be a farewell to music and held out the prospect of individual concerts. Now he is back with a new album.

The duo recently played a one-night only engagement in London that will air as a concert special on CBS this Sunday.