By Brandy McDonnell Staff writer bmcdonnell@oklahoman.com It's been a tough few weeks for celebrity marriages. Oklahoma country music superstar Reba McEntire, who hails from Chockie, and her husband and manager, Narvel Blackstock, announced they are separating after 26 years of marriage, reports The Associated Press. A representative from Big Machine Label Group, which includes McEntire's label, Nash Icon Records, confirmed the separation in an email to The Oklahoman and provided this official statement: “In a joint statement, Narvel Blackstock and Reba McEntire have announced that they have been separated for the past few months, after 26 years of marriage.Read more on NewsOK.com