VIDEO : Ariana Grande's Beats Out Taylor Swift For Award

If you're wondering how Ariana Grande managed to beat Taylor Swift to take home the American Music Award for Favorite Female Artist, the answer is her very cool grandma. Grande was up against Swift and Meghan Trainor, but her grandma had zero interest in the competitors and consulted Ari about how one casts a vote for the American Music Awards. Her diligence was rewarded, and Grande's grandma, who attended the ceremony with the "Focus" singer, got to see her girl take home the award.