Rapper Nas' ex-wife Kelis has filed contempt charges against him, alleging that Nas owes more than $200,000 in back child and spousal support. Nas has plead not guilty to the charges and a hearing has been scheduled for March 10th. Kelis filed for divorce back in April, 2009, and was awarded in excess of $50k/month in child and spousal support. If Nas is found guilty of contempt, he will likely face time in jail.