A bright, balanced blend of Irish music and dance drawing on seasonal inspirations, Irish Christmas in America arrives on stage at Sellersville Theater 1894 Tuesday, November 27. Fiddler Oisín Mac Diarmada, of the Irish traditional supergroup Téada, has been producing the show for 14 years, which never ceases to delight audiences from one end of the country to the other—regardless of whether their roots are Irish.