If you ask John David where he's from, he may say without hesitation; "I'm from Amarillo." But depending on who's asking, he may shrug and say: "I'm from everywhere, I guess." He would be mostly right either way. He was born in Detroit when his father, John Souther, was crooning in front of the big bands of his day, under a stage name, Johnny Warren. His mother hated the fact that "Johnny Warren"