The Hollywood Reporter confirms that American Idol producers were in negotiations to bring back Jennifer Lopez mid-season to replace Mariah Carey. When Carey found out of the possible change, she threatened to sue. The show's ratings have dropped 17 percent since it premiered this season and it seems that producers are getting desperate. A Fox spokesperson has denied the reports on Mariah being replaced by Jen saying, "This is just another ridiculous Idol judge rumor, likely started by talks of Jennifer performing on the finale." Sources connected to the network have confirmed to TMZ that execs have approached JLo about returning for the remainder of the season.