Lady Gaga, Ariana Grande Score Top GRAMMYs in Pop Categories

Lady Gaga and Ariana Grande won two of the major pop music GRAMMYs during the pre-show telecast Sunday night. Lady Gaga took home the Best Pop Solo Performance award for "Joanne (Where Do You Think You're Goin'?)." No doubt it was an exciting moment for the singer to win an award separate from her work…