Last month rapper Nas and his ex-wife Kelis hammered out a joint custody agreement for their 8-year-old son Knight [click here if you missed that].
According to Nas Kelis has already violated the order...
From TMZ
Nas has filed legal docs asking a judge to penalize Kelis because she refused to turn over 8-year-old Knight ... she says it's because the kid wanted to stay with her during Passover. Nas says it was his weekend and the whole Passover thing doesn't make sense.
He says she's been difficult generally when it comes to getting Knight. He says once when he arrived at her house, she screamed at him telling him he couldn't take the child. Nas says Kelis has refused to let him pick up the child from school on several occasions.