LOS ANGELES (Reuters) - The wife of country singer Billy Ray Cyrus has filed for divorce in Los Angeles after 19 years of marriage, the couple said in a statement. Tish Finley Cyrus, the mother of 20-year-old pop star and actress Miley Cyrus, married the "Achy Breaky Heart" singer in December 1993, and the couple have three children together. "This is a personal matter and we are doing what is in the best interest of our family," the couple said in a statement late on Thursday. "We ask that you respect our privacy at this time. ...