Very sad news to report this morning. Kelis and Nas, who are pregnant and expecting their first child together, have decided to call it quits. The couple have been married for only four years and made headlines when they exchanged vows during a very eclectic wedding ceremony in Atlanta, Georgia. Kelis filed the petition for divorce and like most celebrity couples, cited irreconcilable differences as the reason for the split. Keli’s petition also asks for spousal support and joint custody of their unborn child.