Elton John says he “couldn’t be prouder” that his new collaborative album with Brandi Carlile, ‘Who Believes in Angels?,’ has topped the U.K. chart.

Having collaborated with the likes of (deep breath) John Lennon, Aretha Franklin, George Michael, Rod Stewart, Little Richard, Luciano Pavarotti, Eminem and Leonard Cohen, it’s fair to say that Elton ...