Dunkin ' Donuts replaced Snapple as sponsor of the show after three seasons. Four guest judges were invited to judge during the judge 's cuts round: actor Neil Patrick Harris, singer Michael Bublé, actor Marlon Wayans and former judge Piers Morgan. This was the first season to have an all - male finale and the first where at least four magicians competed in the finals. Ventriloquist Paul Zerdin was voted the winner for the season on September 16, 2015. Comedian Drew Lynch was the runner - up, and magician Oz Pearlman came in at third place. Piff the Magic Dragon was named the most memorable act this season, or the fan favorite.
who won season 10 america's got talent
Ventriloquist Paul Zerdin