The year - old contestant 's theme is domestic violence . For her talent portion , she sang Pharrell Williams ' `` Happy '' while she kept time by tapping a red plastic cup on the floor , a la Anna Kendrick 's character in the movie `` Pitch Perfect . '' For her talent portion , she sang Pharrell Williams ' ` ` Happy ''
The year - old contestant 's theme is domestic violence . For her talent portion , she sang Pharrell Williams ' ` ` Happy ''