"Britney on X Factor" will be announced on the final of American Idol??

“The rumors are officially 100% true. She has signed the documents and the conservators have signed off on it as well.”
“Nothing has been set in stone, but I have heard the announcement may be made during a award show. However, if contracts can be signed fast, it would be on the finale of American Idol, since they are both on Fox.”an insider tells HollywoodLife.com