By W. Derek Russell Daily Journal TUPELO – Live music, dough burgers and activities for the entire family are just some of what you’ll find at this year’s annual Dudie Burger Festival in Ballard Park, which celebrates the by-gone era of the dough burger and doo-whop music. The event is the signature fundraiser for the Oren Dunn Museum and celebrates one of Tupelo’s most famous eateries, the decades-old Dudie’s Diner. The burger joint opened in 1947 when Dudie Christian bought a trolley car in Memphis.