American Idol runner-up Crystal Bowersox and musician Brian Walker have split. "After two and a half years, we have decided to end our marriage," the couple told People. "The friendship and love which brought us together remains strong, and we will continue to support each other in our careers and personal lives. We are hopeful that people will be respectful of our privacy as we face this emotional and challenging time for our family." The musicians wed only weeks after their engagement in 2010. Although they have no children together, Bowersox has a 4-year-old son from a previous relationship.