To become a trending topic during Grammy week, when everybody who’s anybody is schmoozing away, is quite a distinction. At the head of the class is, of course, Sir Lucian Grainge, who’s #1 on the Bible’s just-released Power 100—and you don’t need to be a rocket scientist to figure that out. The talented and feisty Ariana Grande is right up there as well, thanks to an erupting new album and her contretemps with Grammy honchos.