Rap superstar 50 cent has banned Ciara from collaborating with Birdman and lil wayne following a dispute with their record label. The In Da Club hitmaker has asked R&B star Ciara not to record with artists at Cash Money Records following a feud between the label and G-Unit - 50 Cent's hip-hop group. The rapper - real name Curtis Jackson - is fuming after G-Unit star Young Buck signed for Cash Money Records. And as revenge, Jackson has stopped a collaboration between Ciara and Cash Money Records founder Bryan 'Birdman' Williams. A source tells the website, "Nobody affiliated with 50 Cent can be affiliated with his enemy."

Maybe lil waynes song to ciara doesn't help - "damn she bad damn she thick, and i may not know perfect, but damn she it, and she thick and she right, damn she nice, you can be my judge baby.. yeah i do life, give me life..and i know that you be dancin til your toes hurt, i can make your toes curl, I can make your soul jerk,we can soul search."
[source]