Sharon Belkofer stole the show at the DNC Wednesday night when she took the stage to introduce President Obama. The 73-year-old great-grandmother told the crowd inside Philadelphia's Wells Fargo Center: "You're probably all wondering, who the heck is this sweet little old lady?" She made the delegates laugh and cry as she spoke about becoming a "Gold Star Mother" following the death of her 44-year-old son, Tom, a lieutenant colonel in the Army. #InsideEdition