Hmmm… well, Lorde, the New Zealand singer with one hit, “Royals,” has a new single. “Solar Power” sounds a lot like George Michaels’ “Freedom 90.” And so it goes. It’s Lorde’s first new single since 2017. Her second album, “Melodrama,” was released four years ago. It was a sales bust but was mysteriously revived briefly with a Grammy nomination. Then after a brouhaha with the Grammys, she fled the scene. Lorde, aka Ella Marija Lani Yelich-O’Connor, is still just 24 years old. Back in 2017 she canceled tour dates in Israel and made a lot of enemies.