'Mighty Ducks' Star Shaun Weiss Leads 'Quack' Chant at Concert

"Mighty Ducks" star Shaun Weiss knows how to get a crowd excited ... leading an audience in an iconic 'Ducks' chant -- and tossing out signed gear. The actor/comedian -- best known as Goldberg the Goalie from the 'Ducks' trilogy -- hit up the House…