Ariana Grande’s first single under her own name in more than three years arrives with a feel-good, bouncy lilt in the melody and rhythm, and a clear inspiration from Madonna’s “Vogue” (along with a splash of mid-‘90s Janet Jackson). But first impressions can be deceiving, because the lyrics bear a refreshingly positive I-am-who-I-am, be-yourself-and-keep-it-moving message […]