The annual honor of calling "Riders up!" at the Kentucky Derby will go to a woman who needs no introduction.The call for the milestone 150th year will be "lifestyle innovator and entrepreneur" Martha Stewart.Derby officials made the announcement on Friday.She will, as the many before her, command all jockeys to mount their horses right before the race.Those who came before her include football star Patrick Mahomes last year, and Louisville rapper Jack Harlow the year before that.Also on Friday, Derby officials announced country superstar Wynonna Judd would sing the national anthem.Read more about that here:The Derby is less than a month away now, on May 4.